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- Ekström, Thomas, et al.
(författare)
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Towards a purchasing portfolio model for defence procurement – A Delphi study of Swedish defence authorities
- 2021
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Ingår i: International Journal of Production Economics. - : Elsevier. - 0925-5273 .- 1873-7579. ; 233
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Tidskriftsartikel (refereegranskat)abstract
- This study explains the constructs of a purchasing portfolio model (PPM) that defence authorities can use in practice in defence procurement and designs a segmentation model. We identify open PPM design and application questions in the literature and conduct a Delphi study with twenty experts from Swedish defence authorities to design a segmentation model that is fit-for-purpose. The paper addresses the open design and application questions discussed in the literature and satisfies the operational requirements of the Swedish Armed Forces (SwAF). The proposed segmentation model builds on three dimensions: the operational requirements of the SwAF, the market's ability to deliver supplies on time, and limitations in the SwAF operational capability if the market does not deliver supplies on time. To reduce complexity, we propose a two-stage model in which we use one dimension as a precursor to a two-dimensional model. In the latter, we merge sixteen elements into one square along with three other segments which users should treat differently. The paper contributes to extant academic knowledge on PPMs by eliciting practitioners' views on open design and application questions. We develop the proposed segmentation model in cooperation with practitioners and believe that it will be of value in defence procurement practice.
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| 2. |
- Erdeniz, Robert
(författare)
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Operations planning revisited : theoretical and practical implications of methodology
- 2016
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Ingår i: Defence Studies. - London : Routledge. - 1470-2436 .- 1743-9698. ; 16:3, s. 248-269
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Tidskriftsartikel (refereegranskat)abstract
- Parts of NATO’s contemporary planning framework called the comprehensive operations planning directive (COPD), and parts of the operation-level planning process should be revised since they suffer from methodological inconsistency. This claim is defended by discussing contradicting methodological properties and heuristics applied when framing and managing a military problem in accordance with the COPD. The methodological inconsistency within the COPD; in other words, simultaneously applying contradictory methodological properties, implies one theoretical and three practical implications. The theoretical implication is summarised in a meta-theoretical framework and explained by discussing five methodological properties: non-linearity, emergence, independently changeable generalisations, invariance and boundaries. The three practical implications of methodology imply that methodology is guiding: the problem-frame, conceptual development and action. To improve military planners’ understanding and management of these four identified implications, NATO is recommended to develop a “handbook of methodology.” The purpose of such a handbook should be to emphasise the utility of methodology when planning military operations.
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| 3. |
- Ekström, Thomas, 1961-
(författare)
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Segmentation and differentiation in defence supply chain design : A dynamic purchasing portfolio model for defence procurement
- 2020
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- An important priority in the current Swedish Defence Bill is to increase the operational warfighting capability of the Swedish Armed Forces, which has implications for the defence supply chain. A recent study suggested that the Swedish Armed Forces should use segmentation of supplies and differentiation of supply chains to enable an affordable supply chain design (SCD). This raises questions regarding which segmentation model and which supply chain strategies (SCSs) the Swedish Armed Forces should use.The purpose of this research is to design and develop a purchasing portfolio model (PPM) for defence procurement, which will be of practical use for defence authorities. The author defines a PPM as consisting of a segmentation model, tactical levers, differentiation strategies and guidance for management decisions. The research builds on a Delphi study with twenty experts from Swedish defence authorities. It addresses the operational requirements on readiness and sustainability that must be satisfied, as well as research gaps and open issues in the literature regarding PPM design and application.The findings include several novelties. The author proposes a dynamic PPM, including an innovative two-stage segmentation model, with a precursor and a two-dimensional model. The latter merges sixteen elements into one square and three other segments. Another originality is that the PPM is both prescriptive and serves as a catalyst for in-depth discussions. The author also develops guidance for management decisions, including twelve tactical levers, and eight SCSs to differentiate treatment of the supply segments.The research contributes to theory by combining constructs from the purchasing and supply management (PSM) literature and supply chain management (SCM) literature, and applying them in the context of military logistics, including defence procurement. It contributes to practice by developing a PPM that is relevant to practitioners in defence procurement and satisfies the operational requirements of the Swedish Armed Forces. It also contributes to methodology by investigating how researchers can use two panels in Delphi studies to enhance research validity.
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| 7. |
- Fredriksson, Magnus, 1970, et al.
(författare)
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A Model for Evaluating Corporate Environmental Communication
- 2014
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Ingår i: Ralph Tench , William Sun , Brian Jones (ed.) Communicating Corporate Social Responsibility: Perspectives and Practice (Critical Studies on Corporate Responsibility, Governance and Sustainability, Volume 6). - Bingley : Emerald Books. - 9781783507955 ; 6, s. 111-130
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Bokkapitel (refereegranskat)abstract
- Purpose The chapter proposes a model for evaluating environmental information based on informativity as a measurement of whether corporate environmental disclosures provide readers with information relevant for making reasonable assessments of companies’ environmental work. Methodology/approach On a general level, informativity denotes a set of universal principles for information qualities. In order to make informed assessments, information ought to provide readers with information on specific projects, outcome, and long-term impact. The model proposed herein allows researchers and practitioners to quantify corporate environmental information based on a set of key textual variables. By allowing for the quantification of qualitative information, the model allows for comparative studies of CSR communication across, for example, companies, sectors, and nations. Research implications The model is applicable for corporations with an interest to evaluate their performance by applying standardized and set principles. Practical implications The model can be used as a tool for consumers and investors alike in making better and more informed assessments about a corporation’s environmental initiatives and performances. This application is particularly relevant for stakeholders with an interest in developing statistical data for assessing and benchmarking environmental communication. Originality The chapter proposes a model for evaluating environmental information as a measurement of whether corporate environmental disclosures provide readers with information relevant for making reasonable assessments of companies’ environmental work.
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| 9. |
- Ekström, Thomas, 1961-
(författare)
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The Delphi Technique – Limitations and Possibilities
- 2020
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Ingår i: The 32nd Annual NOFOMA Conference, 17 – 18 September on Internet.
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Konferensbidrag (refereegranskat)abstract
- PurposeThe dual purpose of this paper is to analyse the implications on research rigour of using two panels in a Delphi study, and to take a first step towards investigating how researchers in logistics and SCM establish rigour in Delphi studies.Design/methodology/approachBased on a literature review on research rigour in Delphi studies, this paper analyses how a modified design, with two panels, effected research rigour in a Delphi study that produced unexpected results. The paper also conducts a pilot literature review on Delphi-studies in logistics and SCM research, and investigates how these authors establish research rigour.FindingsThis paper finds that with two panels, researchers may enhance rigour in a Delphi study, but also that such a design may lead to results that would be less likely with a conventional design, especially if combined with concluding workshops. The pilot literature review indicates that Delphi-studies in logistics and SCM research establish rigour through the provision of an audit trail, rather than by explicitly discussing the quality criteria of correspondence and/or trustworthiness.Research limitations/implications (if applicable)The research indicates limitations with a conventional Delphi design, with one expert panel, and opportunities with a modified design, with two panels. Further research is required to explore these indicative findings.Original/valueThe paper demonstrates how a modified design of the Delphi technique, in combination with concluding workshops, can produce results and insights that would be more difficult to achieve with only one expert panel.
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