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  • 1.
    Abdul-Jalbar, Beatriz
    et al.
    Universidad de La Laguna.
    Segerstedt, Anders
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Sicilia, Joaquín
    Universidad de La Laguna.
    Nilsson, Andreas
    A new heuristic to solve the one-warehouse N-retailer problem2010In: Computers & Operations Research, ISSN 0305-0548, E-ISSN 1873-765X, Vol. 37, no 2, p. 265-272Article in journal (Refereed)
    Abstract [en]

    We deal with a multi-echelon inventory system in which one warehouse supplies an item to multiple retailers. Customer demand arrives at each retailer at a constant rate. The retailers replenish their inventories from the warehouse that in turn orders from an outside supplier. It is assumed that shortages are not allowed and lead times are negligible. The goal is to determine replenishment policies that minimize the overall cost in the system. We develop a heuristic to compute efficient policies, which also can easily be used in a spreadsheet application. The main idea consists of finding a balance between the replenishment and the inventory holding costs at each installation. This new heuristic we compare with two other approaches proposed in the literature; the computational studies show that in most of the instances generated the new method provides lower costs.

  • 2.
    Abrahamsson, Lena
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Human Work Science.
    Bengtsson, Lars
    Lunds tekniska högskola, LTH.
    Gremyr, Ida
    Chalmers University of Technology.
    Kowalkowski, Christian
    Linköpings universitet.
    Nilsson, Anders
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Rehn, Alf
    Åbo Akademi.
    Segerstedt, Anders
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Säfsten, Kristina
    Högskolan i Jönköping.
    Öhman, Peter
    Mittuniversitetet.
    Industriell ekonomi och organisering: IE2016Book (Refereed)
  • 3.
    Aitomäki, Yvonne
    et al.
    Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
    Allard, Christina
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Social Sciences.
    Lin, Janet
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
    Sandström, Anders
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    LTU Teaching guide to e-learning: how to clear the mist of teaching through the cloud2015Conference paper (Other academic)
  • 4. Akersten, Per-Anders
    et al.
    Klefsjö, Bengt
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Dependability management as a management system based on core values, methodologies and tools2001In: Safety and reliability: towards a safer world : proceedings of the European Conference and Reliability, ESRel 2001, Torino, Italy 16 - 20 September / [ed] Enrico Zio ; Micaela Demichela; Norberto Piccinini, Torino: Politecnica , 2001, p. 245-252Conference paper (Refereed)
  • 5.
    Albadvi, Amir
    et al.
    Tarbiat Modares University.
    Gharaee, Roudabeh
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering. Tarbiat Modares University.
    Drivers and barriers of E-banking adoption: case of Karafarin bank2009In: Proceedings of the 3rd International Conference on Digital Society: ICDS 2009 : 1 - 7 February 2009, Cuncun, Mexico / [ed] Yutaka Takahashi, Piscataway, NJ: IEEE Communications Society, 2009, p. 235-240Conference paper (Refereed)
    Abstract [en]

    This paper investigates drivers, determinants and barriers of electronic banking adoption in Iran. Results of the analysis of information gathered through comprehensive interviews with the key managers of the pioneer private bank for e-banking adoption in Iran (KB) indicate that the adoption status is the transition of pre-development to development phase and the main drivers for adopting e-banking are downsizing, gaining competitive advantage, increasing market share and improving bank's image. The analysis further reveals that inefficient ICT infrastructure, political challenges and traditional organizational culture are barriers for adoption of e-banking in Iran. We conclude that banks in Iran need to web-enable themselves sooner or later and in order for the banks to overcome some of their barriers identification of the drivers for e-banking adoption would be a helpful tool.

  • 6.
    Aldenlöv, Jens
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Bergquist, Bjarne
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Eriksson, Per-Erik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Innovation and Design.
    Söderholm, Peter
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Gustavsson Kärrbom, Tina
    KTH, Depteartment of Real Estate & Construction Management.
    Public procurement of railway infrastructure maintenance: a literature review2017In: Proceedings of the 9th Nordic Conference on Construction Economics and Organization / [ed] Buser, M; Lindahl, G; Raisanen, C, Lyngby: Polyteknisk Boghandel og Forlag, 2017, p. 10-21Conference paper (Refereed)
    Abstract [en]

    The maintenance of railway infrastructure has in several instances been changed from government-based to being based on public procurement, with varying degrees of flexibility for the contractor to design their maintenance work. The purpose of-giving contractors a larger freedom of choice of how to perform maintenance is to stimulate them to innovate and develop their maintenance processes. Since the contracts differ in between and there are changes in government policies over time that affects both existing and new contracts, a comparison between different contracts becomes challenging. A literature review has been conducted to understand the change in procurement strategy and how to encourage contractors to innovate. The research questions include: What procurement strategies are there? How is maintenance evaluated? How does procurement affect the innovation opportunities for entrepreneurs? The literature review focuses on railway maintenance and contract design between client and contractor. In total, 17 articles matched the search criteria and were selected for the review. To have successful maintenance service, five articles suggested partnering as a strategy with common goals in combination with good communication during the entirety of the contract. When selecting incentive plan, four articles mentions that a focus on performance-based incentives in combination with risk management is better rather than actual payment schemes. The reason being that payment is often the main cause of conflicts between client and contractor. The scientific literature suggests that improvement in incentives improves quality of maintenance, decreases delays and technical failures. The conclusion from the literature review is that partnering in railway maintenance is considered successful. With accurate knowledge about railway assets the incentive plan becomes accurate which reduces costs. The literature review is a part of a research project with an overall goal to develop a model to guide the selection of appropriate type of procurement strategy, contract and control of maintenance for a more sustainable railway system.

  • 7.
    Aldenlöv, Jens
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Bergquist, Bjarne
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Eriksson, Per-Erik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Innovation and Design.
    Söderholm, Peter
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Karrbom Gustavsson, Tina
    KTH Royal Institute of Technology, Real Estate and Construction Management .
    Public procurement of railway infrastructuremaintenance: a literature review2017Conference paper (Refereed)
    Abstract [en]

    The maintenance of railway infrastructure has in several instances been changed from government-based to being based on public procurement, with varying degrees of flexibility for the contractor to design their maintenance work. The purpose of-giving contractors a larger freedom of choice of how to perform maintenance is to stimulate them to innovate and develop their maintenance processes. Since the contracts differ in between and there are changes in government policies over time that affects both existing and new contracts, a comparison between different contracts becomes challenging. A literature review has been conducted to understand the change in procurement strategy and how to encourage contractors to innovate. The research questions include: What procurement strategies are there? How is maintenance evaluated? How does procurement affect the innovation opportunities for entrepreneurs?

    The literature review focuses on railway maintenance and contract design between client and contractor. In total, 17 articles matched the search criteria and were selected for the review. To have successful maintenance service, five articles suggested partnering as a strategy with common goals in combination with good communication during the entirety of the contract. When selecting incentive plan, four articles mentions that a focus on performance-based incentives in combination with riskmanagement is better rather than actual payment schemes. The reason being that payment is often themain cause of conflicts between client and contractor. The scientific literature suggests that improvement in incentives improves quality of maintenance, decreases delays and technical failures. The conclusion from the literature review is that partnering in railway maintenance is considered successful. With accurate knowledge about railway assets the incentive plan becomes accurate which reduces costs.

    The literature review is a part of a research project with an overall goal to develop a model to guide the selection of appropriate type of procurement strategy, contract and control of maintenance for a moresustainable railway system.

  • 8.
    Alipour, Mehrdad
    et al.
    Islamic Azad University, Zanjan, Iran.
    Damavandi, Mohammadreza
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    The impact of E-procurement implementation on performance of ship management companies: case study of IRISL2011In: 2011 IEEE 3rd International Conference on Communication Software and Networks (ICCSN),, Piscataway, NJ: IEEE Communications Society, 2011, p. 618-622Conference paper (Refereed)
    Abstract [en]

    The rapid growth of competition in the market and the consequent changes in economic conditions impose organizations and firms to implement new technologies to stay competitive. Those firms which have not implemented technology at the proper time are at the risk of losing customers or suppliers [6]. Transportation industry in general and maritime transportation industry in particular are not exception in this regard. Operation in a very competitive market is the character of maritime transportation industry and the main driving factor toward implementing of technology in maritime transportation industry is continuous pressure for reducing overheads, costs and increasing efficiency and security [5]. Customers, partners, agents, collaborators, shippers, port operators, suppliers and service agencies are involved in the ship transport industry supply chain, and one of the major requirements in such a supply chain in which all concerned parties are scattered all over the world, is the high speed transferring of data between them. In order to achieve competitive advantage over the rivals, the e-commerce and e-business with their attributes are focal points for ship owners and other stakeholders [14]. In maritime transportation procurement process plays an essential role. Ships usually purchase a large quantity of supplies for maintaining daily operations. The procurement process in maritime industry should be organized in a way that enables efficient transfer of goods and services into vessels. Today, a major goal of a maritime's supply chain management is to apply information technology to their procurement systems efficiently and cost effectively. Moving away from traditional and paper based offline purchase processing to online procurement enables shipping lines to gain better procurement practices in terms of cost efficiency

  • 9. Alnestig, Peter
    et al.
    Segerstedt, Anders
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Produktkalkyler2008Book (Other (popular science, discussion, etc.))
  • 10.
    Andersson, Martin
    et al.
    Centre for Innovation, Research and Competence in the Learning Economy, Lunds universitet.
    Anokhin, Sergey
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Autio, Erkko
    Imperial College Business School.
    Ejermo, Olof
    Centre for Innovation, Research and Competence in the Learning Economy, Lunds universitet.
    Lavesson, Niclas
    Centre for Innovation, Research and Competence in the Learning Economy, Lunds universitet.
    Lööf, Hans
    Kungliga tekniska högskolan, KTH.
    Savin, Maxim
    Kungliga tekniska högskolan, KTH.
    Wincent, Joakim
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Innovation and Design.
    Ylinenpää, Håkan
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Innovation and Design.
    Det innovativa Sverige: Sverige som kunskapsnation i en internationell kontext2013Report (Other (popular science, discussion, etc.))
    Abstract [sv]

    I debatten om Sveriges prestationer när det gäller innovation och entreprenörskap blandas lovord med domedagsprofetior. Det pratas bland annat om svenska paradoxer och entreprenöriella klimatförändringar, men utifrån en rad olika källor och definitioner. I denna rapport reder nio forskare, från de tre ledande innovationsforskningscentrumen CESIS, CiiR och CIRCLE, ut begreppen. De levererar en nyanserad bild av Sverige som innovations- och kunskapsnation.• Hur står sig ”det nya Sverige” i en internationell jämförelse?• Existerar den svenska paradoxen?• I vilket land får en investerad FoU-krona störst effekt?• Och är sambandet mellan nyföretagande och innovation alltid positivt?Detta är några av de frågor som får svar. Rapporten har produceratsi samarbete mellan VINNOVA och ESBRI.

  • 11.
    Andersson, Sven
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    The fuzzy front end of product innovation processes: the influence of uncertainty, equivocality, and dissonance in social processes of evolving product concepts2010Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Developing new products is essential for the long-term survival of companies. The fuzzy front end (FFE) is the first phase in the product innovation process and is considered an important determinant for successful product innovation. This thesis addresses the social process in which individuals evolve a product concept in the fuzzy front end. In the FFE individuals must evolve a clear view of 'customer', 'competitor', 'resource' and 'technical solution' aspects regarding the product concept before a go/no-go decision is made and the product concept proceeds to implementation in the development phase. The clearness required regarding these four aspects is acquired through the social process, where individuals think, act, and interact in relation to ‘the self' and significant others. The social process in FFEs is addressed through three research questions. The first general research question is; (1) how do product concepts evolve through the social process in success and failure FFEs? From the general research questions, two specific research questions are addressed: (2) how do uncertainty, equivocality and dissonance influence the social process when evolving a product concept in the FFE? And (3) how do individuals cope with uncertainty, equivocality and dissonance when evolving a product concept in the FFE? To answer the research questions, data have been collected using the repertory grid technique, the techniques for analyzing social networks and alter-ego networks, and narratives. The data collected derives from four companies which were selected to maximize differences in terms of technologies between companies and thus, differences in the FFEs. Within the four companies 32 fuzzy front ends of product innovation processes have been studied, and one success and one failure FFEs are described for each company. In total, 22 respondents were interviewed regarding 23 successful and 9 failure projects. The data have been analyzed on both the individual and group level. The analyses involved repertory grid analysis in order to identify how individuals construct uncertainty, equivocality and dissonance in their frames of reference. The repertory grid analyses also provide information about relations in the social process regarding thoughts and interactions in success and failure FFEs and distinctive thought patterns, i.e. homogeneity on the group level. The analyses of narratives provide pictures and information about the FFEs and how individuals addressed uncertainty, equivocality and dissonance. The main findings are that (1) dissonance is a central concept to address in the fuzzy front end in order to understand how clearness of a product concept evolves, and (2) the identification of relations between thought, action, and interaction on the one hand and uncertainty, equivocality, and dissonance on the other, which helps us understand the differences between uncertainty, equivocality and dissonance. Lastly, the findings (3) show that differences exist in the social process based on the type of technology characterizing daily production in the companies.

  • 12.
    Andéhn, Mikael
    et al.
    School of Business, Stockholm University.
    Kazeminia, Azadeh
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Lucarelli, Andrea
    Stockholm University.
    Sevin, Efe
    School of International Service, American University.
    User-generated place brand equity on Twitter: The dynamics of brand associations in social media2014In: Place Branding and Public Diplomacy, ISSN 1751-8040, E-ISSN 1751-8059, Vol. 10, no 2, p. 132-144Article in journal (Refereed)
    Abstract [en]

    Social media provides a unique opportunity for brand analysis. The mere fact that users create content and messages through social media platforms makes the detailed monitoring of temporal variation in brand images possible. This research analyzes data collected from a specific social media platform, Twitter, about the city of Stockholm over a 3-month period to analyze how social media could be conceptualized as a new venue for place brand meaning formation, and to see how user-generated content pertains to the issue of place brand equity. Using semantic and content analyses, assemblages of place brand-related themes are explored. Subsequently, these assemblages of themes are deconstructed at a conceptual level and then subjected to frequency analysis, revealing an underlying typology based on characteristics of the temporal variation of the various types of brand elements. These results are explored on the basis of both how they apply to the understanding of content on social media in general and how they apply to the online presence, or digital footprint, of place brands

  • 13.
    Anokhin, Sergey
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Activity: Strategic Management Society2007Conference paper (Other (popular science, discussion, etc.))
  • 14.
    Anokhin, Sergey
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Wincent, Joakim
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Innovation and Design.
    Autio, Erkko
    Imperial College Business School.
    Operationalizing opportunities in entrepreneurship research: use of data envelopment analysis2011In: Small Business Economics, ISSN 0921-898X, E-ISSN 1573-0913, Vol. 37, no 1, p. 39-57Article in journal (Refereed)
    Abstract [en]

    Despite the impressive development of substantive theories in entrepreneurship, without the development of measurement theories, further advancement of the field is problematic. In particular, the notion of opportunities, central to entrepreneurship research, requires adequate macro-level operationalization. We demonstrate how to employ data envelopment analysis (DEA) to operationalize not only innovative opportunities, but also technological arbitrage opportunities. We provide an illustrative example based on a sample of 66 countries during the period of 1993-2002. We include estimates of innovative and arbitrage opportunities for possible use by other scholars, discuss the promise and limitations of such estimates, demonstrate how both innovative and arbitrage opportunities correlate with the rates of entrepreneurial activity, and suggest several possible directions for future research.

  • 15.
    Asif, Muhammad
    et al.
    University of Twente.
    Searcy, Cory
    University of the Punjab, Lahore.
    Garvare, Rickard
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Ahmad, Niaz
    National Textile University, Faisalabad.
    Including sustainability in business excellence models2011In: Total quality management and business excellence (Online), ISSN 1478-3363, E-ISSN 1478-3371, Vol. 22, no 7, p. 773-786Article in journal (Refereed)
    Abstract [en]

    The purpose of this paper is to explore the adequacy of business excellence models (BEMs) to address corporate sustainability, which is conceptualised in terms of economic, social, and environmental bottom lines. How organisations may manage corporate sustainability in the absence of a comprehensive sustainability management system standard is also explored. A survey of literature has been carried out. The European Foundation for Quality Management (EFQM) excellence model and the Baldrige Criteria for Performance Excellence (BCPE) are analysed with regard to their considerations of sustainability. The findings reveal that while triple bottom-line considerations are addressed to some extent in the studied BEMs, the models per se do not comprehensively address sustainability issues and economic prosperity remains a dominant consideration. Suggestions for the improvement of the EFQM excellence model and BCPE are discussed. To provide a comprehensive approach for addressing corporate sustainability, an integrated quality-sustainability framework is proposed. The essence of the framework is that sustainability indicators, such as those provided in the Global Reporting Initiative framework, could be integrated with core business processes using the structures and infrastructure provided by BEMs. The proposed improvements should be considered in future revisions of the EFQM excellence model and BCPE.

  • 16.
    Axsäter, Sven
    et al.
    Luleå University of Technology.
    Samuelsson, Björn
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Evaluation of a new type of sequentiallot sizing techniques1990In: Engineering Costs and Production Economics, ISSN 0167-188X, E-ISSN 1878-4011, Vol. 19, no 1-3, p. 281-286Article in journal (Refereed)
    Abstract [en]

    The classical dynamic lot size problem without backlogging is usually solved with the aid of various heuristics. Most heuristics are sequential, i.e. the demand is considered period for period, and a decision whether to include the demand in a certain period in the preceding batch is taken without regarding the future demand. Recently, it has been shown how to design a sequential lot sizing rule that will optimize the average performance, provided that a typical demand looks like a sequence of independent and identically distributed random numbers. The purpose of this paper is to evaluate if and how this methodology can be implemented in practice. The new lot sizing techniques are evaluated in a simulation study for different types of demand.

  • 17.
    Backlund, Fredrik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    A project perspective on doctoral studies: a student point of view2017In: International Journal of Educational Management, ISSN 0951-354X, E-ISSN 1758-6518, Vol. 31, no 7, p. 908-921Article in journal (Refereed)
    Abstract [en]

    Purpose

    Many doctoral students never obtain a doctoral degree, and many do not finish their studies in time. To promote aspects of effectiveness and efficiency in doctoral studies this article aims to explore a project perspective, more specifically how doctoral students experience their studies in terms of key dimensions of projects.

    Design/methodology/approach

    Written reflections concerning a project perspective in doctoral studies, based on 18 students at a Swedish university, have been categorised and analysed by means of the qualitative research software NVivo.

    Findings

    Main findings are: Reflections on the project manager role including both the supervisor and the doctoral student, and different views on project control parameters and the concepts goal-seeking and goal-orientation. A more comprehensive picture of project planning is presented, compared with the Individual Study Plan (ISP), including different project methods and tools that can be suitable in a doctoral project.

    Research limitations/implications

    The study is based on a limited number of doctoral students, however the aim has been to give examples of project perspectives. The findings could be valuable for increased understanding of doctoral studies and of the project management field in general.

    Practical implications

    The study can induce awareness among doctoral students and supervisors of a project perspective in doctoral studies, promoting aspects of efficiency and effectiveness.

    Originality/value

    Compared to previous research, this study explicitly tries to understand how doctoral students make sense of their doctoral studies from a project perspective.

  • 18.
    Backlund, Fredrik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Conclusions of planning and preparation for RCM implementation: a case study at a Swedish hydro power plant2002In: Proceedings: ICOMS-2002, International Conference of Maintenance Societies : Queensland Hilton Hotel, 21 - 24 May 2002, Brisbane, Queensland, Central Queensland University, 23 - 24 May 2002, Gladstone, Queensland, Brisbane, 2002Conference paper (Refereed)
  • 19.
    Backlund, Fredrik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Managing the introduction of RCM experiences from a Swedish hydropower company2005In: 2005 IEEE Power Engineering Society general meeting: San Francisco, CA, June 12 - 16, 2005, Piscataway, NJ: IEEE Communications Society, 2005, p. 2646-2648Conference paper (Refereed)
    Abstract [en]

    The introduction of reliability centred maintenance, RCM, has become more and more commonly within different industrial sectors. The many application areas, and the long-time use of RCM, points to the importance and usefulness of RCM when developing an effective and efficient maintenance programme. However, introducing RCM, implies introducing a new way of way of working with maintenance in an organisation, which can be very complex and cumbersome. Although RCM is an organised common sense approach to improvements of maintenance performance, a long-term approach may be difficult to manage. Several examples of failed introductions of RCM exist in various lines of business and types of organisations. Some of the main reasons why the RCM introduction becomes problematic or fails are technical in nature, but the majority of problems seem to be managerial and organisational. The introduction characteristics described above has been studied within a longitudinal single-case study, performed within a hydropower organisation. The case study, as well a multiple-case study, including three other hydropower organisations. Based on the findings in the case studies, a comprehensive and holistic RCM introduction strategy was proposed. The strategy framework could be seen as a structured approach to managing obstacles and driving forces identified in the case studies.

  • 20.
    Backlund, Fredrik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Managing the introduction of reliability-centred maintenance, RCM: RCM as a method of working within hydropower organisations2003Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Due to a competitive environment, many companies are required to reduce their overall costs while maintaining the value and reliability of their assets. The use of Reliability-Centred Maintenance, RCM, can support organisations to develop an effective and efficient maintenance programme, meeting these requirements in a cost-effective manner. RCM basically combines different techniques and tools, in a systematic approach to managing risks, as a basis for maintenance decisions. When introducing RCM with the aim of changing the overall way of working with maintenance in the organisation, i.e. on a full-scale basis, a long- term introduction approach should preferably be used. In addition to improve the performance of the assets, this approach uses RCM to improve knowledge, motivation and teamwork among the personnel. In that way, the approach could promote commitment of managers and employees, making an RCM based maintenance programme far more likely to endure. However, in several cases, organisations have experienced severe difficulties when introducing RCM on full-scale basis. Some of the reasons are technical in nature, but the majority are managerial obstacles. In the research project presented in this thesis, an aim has been to obtain a better understanding of why some organisations experience a cumbersome introduction of RCM. A focus has been to identify managerial factors that affect an RCM introduction in form of obstacles and driving forces. In the research project, a longitudinal single-case study has been performed during 1997 - 2003, studying the efforts towards an RCM introduction in a Swedish hydropower company. Many of the findings in the single-case study have been validated by a multiple-case study, including three other hydropower organisations introducing RCM. The findings are basically different kinds of managerial factors. These factors could be managed within four management perspectives, which points out the need of a holistic approach when managing RCM introduction. An RCM introduction process has also been identified during the research, where the managerial factors can be structured according to different phases. Based on these findings, an RCM introduction strategy framework has been developed, with the aim to facilitate for organisations going to introduce RCM. The strategy framework is structured according to the different phases in the RCM introduction process, with requirements and recommendations to be considered in each phase.

  • 21.
    Backlund, Fredrik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Reliability-centred maintenance: identification of management and organisational aspects when introducing RCM1999Licentiate thesis, monograph (Other academic)
    Abstract [en]

    Increased demands on productivity, quality and cost-efficiency affecting manufacturing trends towards increased complexity and higher degree of process automation. A major break down in such a manufacturing system may generate severe damage on productivity, environment and personnel. Using risk assessment to identify serve risks within a plant, in combination with different maintenance strategies, is one course of action to prioritising maintenance activities needed. A methodology for executing a so-called risk-based maintenance is reliability-centred maintenance, RCM. There are several benefits generated from RCM, for example, improved safety and maintenance cost-effectiveness. Though, several companies have problems to make it work. The problems that occur are many times within management and organisational (M&O) aspects, such as lack of communication and management support. Some M&O aspects of importance when introducing improvement methods as TQM and TPM are similar with the ones valid for RCM. Though, differences seem to depend on the use of RCM in a more technology environment, overshadow the affects M&O aspects really bring about when introducing it. That is probably the main reason why obstacles occur when introducing RCM. A structured step model has been developed, focusing on the preparation and planning activities when introducing RCM.

  • 22.
    Backlund, Fredrik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Will a preparation stage facilitate the implementation of RCM?1999In: Safety and Reliability: proceedings of ESREL '99 - The tenth European Conference on Safety and Reliability, [held in] Munich-Garching, Germany, 13-17 September 1999 / [ed] Gerhart I. Schueller; P. Kafka, Rotterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1999, p. 173-178Conference paper (Refereed)
  • 23.
    Backlund, Fredrik
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Akersten, Per-Anders
    RCM introduction: process and requirements management aspects2003In: Journal of Quality in Maintenance Engineering, ISSN 1355-2511, E-ISSN 1758-7832, Vol. 9, no 3, p. 250-264Article in journal (Refereed)
    Abstract [en]

    Organisations have introduced reliability-centred maintenance (RCM) with a view to changing their overall way of performing maintenance. Many times, however, these organisations have experienced cumbersome or even failed RCM introduction. This is usually because of managerial and organisational obstacles, which more or less unexpectedly turn up during introduction. This paper focuses on managing the introduction of RCM. By applying process and requirement management principles, obstacles that turn up during introduction can be identified early on. As an example of this, we cite the results of a case study of the introduction of RCM in a Swedish hydropower company.

  • 24.
    Backlund, Fredrik
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Chronéer, Diana
    Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Computer Science.
    Sundqvist, Erik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Maturity assessment: towards continuous improvements for project-based organisations?:2015In: International Journal of Managing Projects in Business/Emerald, ISSN 1753-8378, E-ISSN 1753-8386, Vol. 8, no 2, p. 256-278Article in journal (Refereed)
    Abstract [en]

    PurposeThe aim of this study is to contribute to the empirical research on project management maturity assessments, specifically based on a maturity model. Design/methodology/approachThe empirical data is based on a case study including in-depth interviews with a semi-structured approach, followed by a focus group interview. A survey was distributed within a project-based organisation and to client and stakeholder representatives, and then analysed. The organisation in the case study is a project department within a Swedish mining company. FindingsCareful considerations are needed when choosing a project management maturity model (PM3) as the model structure can influence the assessment’s focus. It is also important to include both internal and external project stakeholders in the assessment to achieve an efficiency and effectiveness perspective when analysing PM capabilities. Valid information from an assessment is crucial, therefore, clear communication from management is important in order to motivate the participants in the assessment. Research limitations/implicationsImproved understanding for implementing and applying a PM3 contributes to the increased knowledge of drivers, enablers and obstacles when assessing PM maturity, which also creates a basis for further research initiatives. Practical implicationsAn increased knowledge of drivers, enablers and obstacles should be valuable for practitioners introducing and applying a PM3.Originality/valueThis case study gives an in-depth insight into the implementation of a PM3 within a project-based organisation. Through conducting a literature review, it was found that this type of empirical research is rare

  • 25.
    Backlund, Fredrik
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Chronéer, Diana
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Innovation and Design.
    Sundqvist, Erik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Project Management Maturity Models – A Critical Review: A Case Study within Swedish Engineering and Construction Organizations2014In: Procedia - Social and Behavioral Sciences, ISSN 1877-0428, E-ISSN 1877-0428, Vol. 119, p. 837-846Article in journal (Refereed)
    Abstract [en]

    Different kinds of project management maturity models (PM3s) exist today, most of them inspired by the capability maturity model (CMM) developed in the beginning of the 90ies, originally intended to measure capability in software development projects. Research indicates that organizations with higher project management (PM) maturity levels are expected to be successful in terms of project effectiveness and efficiency, and thus have a competitive advantage in the marketplace. Though, despite several PM3s developed during a time period of over 20 years, knowledge about how PM3s are a*pplied in organizations is sparse within the PM literature. This paper explores how major engineering and construction companies view PM maturity and PM3s in order to develop and improve their PM practices. These kinds of organizations are mainly project-intensive, objective oriented,and have the capabilities to perform overall business development initiatives, i.e. suitable for applying PM3s.The contribution of PM3s to organizational improvement and development is somewhat unclear. Therefore, a literature review highlights different aspects regarding PM3s, specifically their purpose, strengths, and weaknesses. To what extent PM3s are used, interviews have been conducted with seven respondents within different project intensive organizations, in their roles as project managers or in charge of PM development. How a PM3 can beintroduced and applied is explored via an in-depth case study at the major mining company in Sweden, LKAB. However, tentative results show that the application of PM3s in Swedish engineering and construction organizations are limited, indicating that further research is needed

  • 26.
    Backlund, Fredrik
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Hannu, J.
    Luleå tekniska universitet.
    Can we make maintenance decisions on risk analysis results?2002In: Journal of Quality in Maintenance Engineering, ISSN 1355-2511, E-ISSN 1758-7832, Vol. 8, no 1, p. 77-91Article in journal (Refereed)
    Abstract [en]

    For several branches of industry, an increasingly competitive environment has raised important questions concerning maintenance in plant systems. For example, the 1996 deregulation in Sweden's electricity sector has resulted in increased competition among the country's power producers. To survive the competition, suppliers have to reduce maintenance costs, i.e. handle maintenance more efficiently. Risk analysis is one tool decision makers can use to help them prioritise as they plan maintenance actions. There are a number of different approaches to risk analysis. As the results of an analysis must form a reliable basis for decision making, it is important to consider whether the quality of the results will vary significantly with the risk analysis approach chosen. This paper presents a comparative study based on three independent risk analyses performed on a specific hydro-power plant. The comparison and evaluation of the analyses reveal major differences in performance and results, along with various factors that affect the quality of the analyses. The study establishes the importance of a well-planned requirement specification and the need to analyse and interpret risk analysis results, before making maintenance decisions.

  • 27.
    Backlund, Fredrik
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Holmberg, Rikard
    Vattenfall Vattenkraft.
    Söderholm, Peter
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
    A 10 years journey introducing RCM within hydropower: a case study at Vattenfall Vattenkraft2008In: EuroMaintenance Papers: Conference and Trade Show on Asset Management & Production Reliability ; Brussels Expo, 8 - 10 April 2008, Belgian Maintenance Association , 2008, p. 21:1-21:10Conference paper (Refereed)
  • 28.
    Backlund, Fredrik
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Jonforsen, F.
    Planning for RCM implementation in an outsourcing environment: a case study at a Swedish hydro power plant2002In: Proceedings of the 16th European Maintenance Congress: Euromaintenance 2002, 2002, p. 19-28Conference paper (Refereed)
  • 29.
    Backlund, Fredrik
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Larsson, Dan
    Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
    Rhen, Mats
    Luleå tekniska universitet.
    Risk analysis and condition monitoring for efficient maintenance planning at Swedish hydro power plants1998In: Safety and reliability: proceedings of the European Conference on Safety and Reliability, ESREL '98, Trondheim, Norway, 16 - 19 June 1998 / [ed] Stian Lydersen, Amsterdam: Balkema Publishers, A.A. / Taylor & Francis The Netherlands , 1998, p. 247-253Conference paper (Refereed)
    Abstract [en]

    Maintenance issues have in recent years grown in importance. Higher demands on availability and quality of products are some of the reasons. These demands have resulted in an increased use of condition monitoring systems, to support an effective maintenance concept. For a complex system, this technique generates an enormous amount of signals which is difficult to diagnose, and a great amount of information which is difficult to handle and interpret for the operator. Therefore, improved diagnosis and decision support tools are necessary, as a complement to the monitoring systems. This paper presents an ongoing project, trying to find a new approach to condition monitor and diagnose Kaplan hydro-power turbines, where the chain from transducer to decision making is under consideration. Risk analysis is adequate for decision making among alternative maintenance tasks and the ambition is a risk model that can be systematically updated with varying economic data and production requirements. Also, the availability is under consideration for the hydro power plant, as a total system, where the owners of the plant should be able to steer the availability according to demand. Another important aspect is the possibility of the condition monitoring system to test itself, which will prevent false alarms.

  • 30.
    Backlund, Fredrik
    et al.
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Sundqvist, Erik
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Continuous improvement: challenges for the project-based organization2018In: International Journal of Quality & Reliability Management, ISSN 0265-671X, E-ISSN 1758-6682, Vol. 5, no 7, p. 1306-1320Article in journal (Refereed)
    Abstract [en]

    Purpose

    There are limited studies of Continuous improvement from the perspective of a project-based organization (PBO). Hence, this article explores challenges that PBOs may encounter when applying Continuous improvement.

    Design/methodology/approach

    An exploratory and qualitative approach has been used, involving six management teams in six different project-based organizations, using focus groups interviews as data collecting method.

    Findings

    A high degree of autonomy among project managers seems to limit a collective approach to project management in PBOs. As a consequence the overall PBO performance becomes subordinate to the individual project performance – an approach opposite to that of Continuous improvement. Further, the management teams themselves seem to uphold a project focus, also complicating improvement initiatives from a PBO perspective.

    Research limitations/implications

    The management teams have been the unit of analysis, where the PBOs mainly conduct projects in an engineering and construction context, and are located in the same country and region. This approach enables the thorough study of a phenomenon, while preconditions for generalization are limited. However, the findings could be used by researchers as a basis for more in-depth studies of specific challenges, and for making surveys to obtain generalization of results.

    Practical implications

    The results can induce awareness and understanding of different challenges if applying Continuous improvement in a PBO, hence a starting point for finding ways to overcome these challenges.

    Originality/value

    The article contributes to an increased understanding of challenges that PBOs may encounter when applying Continuous improvement, confirming and presenting additional findings compared to previous studies.

  • 31.
    Bal, Anjali S.
    et al.
    Segal Graduate School of Business, Simon Fraser University.
    Pitt, Leyland
    Segal Graduate School of Business, Simon Fraser University.
    Steyn, Peter
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Wallström, Åsa
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Styvén, Maria Ek
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    You know you've got to, express yourself: A comparative study of self-expression through brand, women in six Asian nations2015In: The Sustainable Global Marketplace: Proceedings of the Annual Conference of the Academy of Marketing Science, Coral Gables, FL USA May 24-27, 2011 / [ed] Mary Conway, Cham: Encyclopedia of Global Archaeology/Springer Verlag, 2015, p. 165-Conference paper (Other academic)
    Abstract [en]

    Consumers express themselves in a multitude of ways; one expression mechanism is brand consumption. Self-expression can be an important driver of consumer preference and choice. Despite the importance of self-expression, additional research is needed as to how brands are used as a means of self-expression. Previous studies indicate that the importance of brands for self-expression can differ across cultures. This study explores how female consumers in six Asian nations differ in the extent to which they express themselves through the use of their favorite brands.

  • 32.
    Bal, Anjali S.
    et al.
    Segal Graduate School of Business, Simon Fraser University.
    Pitt, Leyland
    Segal Graduate School of Business, Simon Fraser University.
    Steyn, Peter
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Wallström, Åsa
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Styvén, Maria Ek
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    You know you've got to, express yourself: A comparative study of self-expression through brand, women in six Asian nations2011In: The Sustainable Global Marketplace: Proceedings of the Annual Conference of the Academy of Marketing Science, Coral Gables, FL USA May 24-27, 2011 / [ed] Mary Conway, The Academy of Marketing Science, 2011, p. 165-Conference paper (Other academic)
    Abstract [en]

    Consumers express themselves in a multitude of ways; one expression mechanism is brand consumption. Self-expression can be an important driver of consumer preference and choice. Despite the importance of self-expression, additional research is needed as to how brands are used as a means of self-expression. Previous studies indicate that the importance of brands for self-expression can differ across cultures. This study explores how female consumers in six Asian nations differ in the extent to which they express themselves through the use of their favorite brands.

  • 33.
    Baptista, Cristina
    et al.
    Luleå tekniska universitet.
    Forsberg, Lars-Ole
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Industrial buying behavior in the Swedish and Polish mining industries: a comparative study1997Licentiate thesis, monograph (Other academic)
  • 34.
    Baptista, Cristina
    et al.
    Luleå tekniska universitet.
    Salehi-Sangari, Esmail
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Industrial buying behavior in the Swedish and Polish mining industries1998In: Marketing advances in theory, practice and education / [ed] Duncan J. Herrington; Ronald D. Taylor, Society for Marketing Advances , 1998, p. 93-99Conference paper (Refereed)
  • 35.
    Basu, A.P
    et al.
    University of Missouri.
    Ebrahimi, Nader
    Nothern Illinois University.
    Klefsjö, Bengt
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Multivariate harmonic new better than used in expectation distributions1983In: Scandinavian Journal of Statistics, ISSN 0303-6898, E-ISSN 1467-9469, Vol. 10, no 1, p. 19-25Article in journal (Refereed)
    Abstract [en]

    Various definitions of multivariate harmonic new better than used in expectation (MHNBUE) life distributions are introduced and their interrelationships are studied. The definitions are multivariate generalizations of the univariate aging property HNBUE which is weaker than the new better than used in expectation (NBUE) property. Various closure properties of the different MHNBUE classes are proved. Some examples are also given to illustrate the relationships between our MHNBUE properties and the MNBUE properties presented by Buchanan and Singpurwalla (1977). We also study the dual multivariate harmonic new worse than used in expectation (MHNWUE) classes

  • 36.
    Beheshti, Hoosang M.
    et al.
    Radford University.
    Salehi-Sangari, Esmail
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    E-business diffusion in large Swedish firms2008Conference paper (Refereed)
    Abstract [en]

    Advances in e-business are potentially the most important development for both large manufacturing and service organizations around the globe. E-business technology affords the company to move from a traditional business model to a model that promotes shared activities, desicion making, and problem solving as well as strengthening the management of inter- and intra-organizationl processes.

  • 37.
    Beheshti, Hoosang M.
    et al.
    Radford University.
    Salehi-Sangari, Esmail
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Henderson, Dale A. ,
    Radford University.
    The strategic and organizational impact of electronic business on large firms2008In: Journal of International Business Disciplines, ISSN 1934-1822, Vol. 2, no 3, p. 48-61Article in journal (Refereed)
    Abstract [en]

    This research examines the impact of and the benefits derived from e-business integration in large manufacturing and service organizations in Sweden. Business managers are increasingly under pressure to improve the financial performance and the profitability of their companies. The Internet-based electronic business can provide opportunities for business ti improve the efficiency and the effectiveness of their business operations, to form partnership with suppliers, improve customer service, and to manage better their supply chain. The results show that large Swedish firms are benefiting from e-business implementation in many key areas of their business.

  • 38.
    Beheshti, Hooshang
    et al.
    Radford University, Radford, Virginia, USA.
    Hultman, Magnus
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Jung, Marie-Louise
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Opoku, Robert
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Salehi-Sangari, Esmail
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Electronic supply chain management applications by Swedish SMEs2007In: Enterprise Information Systems, ISSN 1751-7575, E-ISSN 1751-7583, Vol. 1, no 2, p. 255-268Article in journal (Refereed)
    Abstract [en]

    The Internet has become an integral part of business activities of most corporations today. Electronic supply chain management (SCM) can improve the operational efficiency of the firm by streamlining processes between the company and its suppliers, business partners, and customers. This research explores the extent and the degree of Internet application in Swedish small- and medium-sized enterprises (SMEs). The analyses of the data show that the Swedish SMEs use the Internet in their supply chain activities to a large degree. The study establishes some differences between smaller and larger organizations as well as between manufacturing and service companies.

  • 39.
    Beheshti, Hooshang M
    et al.
    Radford University.
    Salehi-Sangari, Esmail
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Engström, Anne
    Competitive advantage with e-business: a survey of large American and Swedish firms2006In: Competitiveness Review: an international business journal, ISSN 1059-5422, E-ISSN 2051-3143, Vol. 16, no 2, p. 150-157Article in journal (Refereed)
    Abstract [en]

    Advances in information and communications technology have allowed for a wide range of electronic business models and applications. These applications are providing a competitive advantage for organizations by creating efficiencies and cost reductions. Electronic business should be part of the overall corporate strategy and be integrated into core business processes. This study provides interesting insights into electronic business applications in large corporations and discusses similarities and differences that exist between Swedish and American corporations.

  • 40.
    Beheshti, Hooshang
    et al.
    Radford University.
    Oghazi, Pejvak
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Mostaghel, Rana
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    The impact of supply chain integration on manufacturing firms' financial performance and productivity2009In: Business Research Yearbook: Global Business Perspectives, International Academy of Business Disciplines , 2009, p. 632-639Conference paper (Refereed)
    Abstract [en]

    For decades, corporations have developed strategies and adopted new methods to integrate business processes and activities in order to improve firm performance and achieve both effectiveness and efficiency in their operations. Recently, many firms have focused on integrating both internal and external business activities of their supply chain into a standardized system. The supply chain system extends beyond the boundaries of a firm, considering the costs of all materials flows until products reach the final costumer. This study explores the extent of supply chain integration on the financial performance of the Swedish manufacturing firms.

  • 41. Beheshti, Hooshang
    et al.
    Salehi-Sangari, Esmail
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    The benefits of e-business adoption: an empirical study of Swedish SMEs2007In: Service Business: An International Journal, ISSN 1862-8516, E-ISSN 1862-8508, Vol. 1, no 3, p. 233-245Article in journal (Refereed)
    Abstract [en]

    The global nature of business today and the advances in information and communications technologies have compelled corporations to employ emerging technologies in order to remain competitive. In recent years electronic business has been adopted by many corporations to improve operational efficiency, profitability, and to strengthen their competitive position. This study examines the impact of web-based e-business on the small and medium-size enterprises (SMEs) in Sweden. The analyses of data collected for this study provide valuable information to the executives of manufacturing and service SMEs. The findings show that the SMEs in the sample have benefited from e-business implementation in both operational and performance areas of their organization.

  • 42. Beheshti, Hooshang
    et al.
    Salehi-Sangari, Esmail
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    The impact of technology on trading: past, present and the future1999Report (Other academic)
    Abstract [en]

    This study provides a base for understanding of the role of technology in trading. It evaluates the impact of technology on reshaping the structure of the flow of information in New York Stock Exchange (NYSE) and the electronic stock market (NASDAQ).

  • 43.
    Beninger, Stefanie
    et al.
    Simon Fraser University, Vancouver.
    Parent, Michel
    Simon Fraser University, Vancouver.
    Pitt, Leyland
    Simon Fraser University, Vancouver.
    Chan, Anthony
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    A Content analysis of influential wine blogs2014In: International Journal of Wine Business Research, ISSN 1751-1062, E-ISSN 1751-1070, Vol. 26, no 3, p. 168-187Article in journal (Refereed)
    Abstract [en]

    Purpose - This exploratory study was conducted to analyze the content of influential wine blogs.Design/methodology/approach - The study used content analysis software, Leximancer, to analyze the entire contents of five influential amateur wine blogs. Findings - A key finding is that these blogs all balance self-promotion with the content of their blogs, namely wine and wine-related topics. The wine blogs, though evaluating wines in different ways, review not only the product attributes, but also the experience surrounding wine.Research limitations/implications - Limitations of this study include that the analysis only included five wine blogs and the content analysis was conducted by a sole researcher using a computerized approach.Practical implications - Wine blogs have increasing influence in the wine industry, especially those written by amateur wine bloggers. As such, understanding the tactics used by wine bloggers is of interest to practitioners who aim to market their wines using such channels, as well as providing insight into this contemporary platform for current and aspiring wine critics.Originality/value - This is the first content analysis study that analyzes the content of wine blogs as the readers themselves see it. It provides insights of value not only to those involved in marketing in the wine industry, but also to those interested in the developments of amateur blogs in marketing.

  • 44.
    Bergman, Bo
    et al.
    Department of Mathematics, Linköping Institute of Technology.
    Klefsjö, Bengt
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    A family of test statistics for detecting monotone mean residual life1989In: Journal of Statistical Planning and Inference, ISSN 0378-3758, E-ISSN 1873-1171, Vol. 21, no 2, p. 161-178Article in journal (Refereed)
    Abstract [en]

    The mean residual life of a life distribution F with survival function F̄=1-F is defined as e(x)=(sh{phonetic}∞xF̄(t)dt)/F̄(x) if F̄(x)>0 (e(x)=0 if F̄(x)=0). The function e(x) has proved to be of great interest in many different areas such as biometry, reliability and social sciences. The class DMRL (IMRL) consists of those life distributions which have decreasing (increasing) mean residual life; i.e. e(x) is a decreasing (increasing) function of x. In this paper we present and study a family of test statistics intended for testing exponentiality against DMRL (IMRL). The family includes the test statistics proposed for the same purpose by Hollander and Proschan (1975) for complete samples and later generalized by Chen et al. (1983a) to accomodate randomly right censored samples. We compare the efficiency for different members in the family of test statistics when testing against some different alternatives. Furthermore, we study the efficiency loss due to different amount of exponential censoring. The asymptotical normal distribution of the test statistics are presented and the quality of the normal approximation is also discussed

  • 45. Bergman, Bo
    et al.
    Klefsjö, Bengt
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    A graphical method applicable to age-replacement problems1982In: IEEE Transactions on Reliability, ISSN 0018-9529, E-ISSN 1558-1721, Vol. R-31, no 5, p. 478-481Article in journal (Refereed)
    Abstract [en]

    The Total Time on Test (TTT) concept has proven to be a very useful tool in several reliability contexts. The objective of this note is to illustrate how a generalization of the TTT-concept, the TTT-transform, defined as a certain function of the survivor function, can be used when analyzing different types of age-replacement problems. (14 refs.)

  • 46.
    Bergman, Bo
    et al.
    Linköping Institute of Technology.
    Klefsjö, Bengt
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    A note on some test statistics against HNBUE1987In: Annals of the Institute of Statistical Mathematics, ISSN 0020-3157, E-ISSN 1572-9052, Vol. 39, no 3, p. 483-488Article in journal (Refereed)
    Abstract [en]

    Some comments and extensions are given to the paper on statistics for testing exponentiality against the HNBUEE property (i.e. {Mathematical expression} ≦μ exp(-t/μ), t≧0) by Basu and Ebrahimi

  • 47. Bergman, Bo
    et al.
    Klefsjö, Bengt
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Legenden Philip Crosby har nyligen avlidit2001In: Kvalitetsmagasinet, ISSN 1104-1579, no 4, p. 43-Article in journal (Other (popular science, discussion, etc.))
  • 48.
    Bergman, Bo
    et al.
    Linköping Institute of Technology.
    Klefsjö, Bengt
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Letter to the editors1988In: Reliability Engineering & System Safety, ISSN 0951-8320, E-ISSN 1879-0836, Vol. 21, no 2, p. 155-160Article in journal (Other academic)
  • 49. Bergman, Bo
    et al.
    Klefsjö, Bengt
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Recent applications of the TTT-plotting technique1998In: Frontiers in reliability: a volume commemorating the first 25 years of the Indian Association for Productivity, Quality and Reliability, Singapore: World Scientific and Engineering Academy and Society, 1998, p. 47-61Chapter in book (Other academic)
  • 50. Bergman, Bo
    et al.
    Klefsjö, Bengt
    Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Business Administration and Industrial Engineering.
    Statistical engineering for quality and productivity improvements1990In: European Journal of Engineering Education, ISSN 0304-3797, E-ISSN 1469-5898, Vol. 15, no 3, p. 257-266Article in journal (Refereed)
    Abstract [en]

    The quality concept is strongly connected with customer satisfaction. One important reason for the quality and productivity success in Japanese industry is a consequent and systematic use of statistical methods during different stages of the production process. The quality challenge of European industry therefore implies claims both on the industry to use more statistical methods and on the teaching of statistics at engineering schools at different levels. The authors discuss the modern quality development and the role of statistical methods in this development. They also emphasize its strong implications for the teaching of statistics at engineering schools (27 refs.)

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