Change search
Link to record
Permanent link

Direct link
Publications (10 of 78) Show all publications
Paras, M. K., Wang, L., Pal, R. & Ekwall, D. (2023). A sustainable model based on genetic algorithm for garment redesign process. Journal of Fashion Marketing and Management, 27(5), 870-887
Open this publication in new window or tab >>A sustainable model based on genetic algorithm for garment redesign process
2023 (English)In: Journal of Fashion Marketing and Management, ISSN 1361-2026, E-ISSN 1758-7433, Vol. 27, no 5, p. 870-887Article in journal (Refereed) Published
Abstract [en]

Purpose

This study proposes a garment modularization model based on an interactive genetic algorithm. The suggested model consists of extraction and identification of parts and the determination and implementation of connections. Rules and corresponding mathematical equations have been formulated for the part's extractions from the discarded products and connections for the redesigned products.

Design/methodology/approach

Sustainability entices scholars and practitioners while referring to reducing waste to control environmental degradation. One of the ways to safeguard natural resources is to increase the reuse of old or discarded products. The current study focuses on the redesign process to improve the reuse of products.

Findings

The intelligent system proposed based on the modularization techniques is expected to simplify and quantify the redesign process. The model can further help in the minimization of wastage and environmental degradation.

Originality/value

Presently, manual decisions are taken by the designers based on their memory, experience and intuition to extract and join the parts.

 

Place, publisher, year, edition, pages
Emerald Group Publishing Limited, 2023
Keywords
Sustainable design, Redesign, Fashion industry, Heuristic approach, Mathematical model
National Category
Textile, Rubber and Polymeric Materials Economics and Business
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-29310 (URN)10.1108/JFMM-04-2022-0096 (DOI)000946372800001 ()2-s2.0-85145278541 (Scopus ID)
Available from: 2023-01-17 Created: 2023-01-17 Last updated: 2024-02-01Bibliographically approved
Paras, M. K., Pal, R. & Ekwall, D. (2023). An exploratory study of Swedish and Romanian organisations to investigate upcycling practice in the clothing industry. Research Journal of Textile and Apparel
Open this publication in new window or tab >>An exploratory study of Swedish and Romanian organisations to investigate upcycling practice in the clothing industry
2023 (English)In: Research Journal of Textile and Apparel, ISSN 1560-6074Article in journal (Refereed) Epub ahead of print
Abstract [en]

Purpose

The process of redesigning is one of the essential steps in upcycling, which comprises ideation, reconstruction and fitting. This paper aims to study the best practice of upcycling in the clothing industry. This study is an attempt to standardise upcycling/redesign process.

Design/methodology/approach

An exploratory approach was adopted to perform the research. This study draws on the multiple organisations involved in the upcycling of clothes. The organisations chosen for this study are located in Sweden and Romania using the snowball technique. Semi-structured interviews, direct and participatory observation approaches were used to collect information. The collected data are systematically analysed using NVivo 10 software.

Findings

This paper provides empirical insights into the diverse practices of upcycling. Process, product and demand-based were three fundamental approaches to performing the redesigning process. The fabric quality and durability, variations in size, colour and pattern, skills and efforts required in the extraction of parts and environmental consciousness and awareness were the main factors influencing upcycling process.

Research limitations/implications

The use of the European case may miss best practices from the other region. This study may help scholars to understand the method of upcycling. A practitioner of upcycling can use the findings to improve and standardise the existing process. This research is beneficial for society, as this leads to the reduction of textile wastage.

Originality/value

This paper conceptualises some of the best practices of clothes redesign. This provides a good insight for the organisation for the improvement in the redesign business.

Place, publisher, year, edition, pages
Emerald Group Publishing Limited, 2023
Keywords
upcycling, redesigning, remanufacturing, reverse value chain, closed-loop value chain
National Category
Business Administration
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-29363 (URN)10.1108/rjta-04-2022-0048 (DOI)000911797500001 ()2-s2.0-85146218841 (Scopus ID)
Available from: 2023-01-30 Created: 2023-01-30 Last updated: 2024-02-01Bibliographically approved
Videl Kling, V. & Ekwall, D. (2023). The Selective Logistics Service Provider: Creating the right customer mix to unlock economy of scale. In: NOFOMA 2023 – Logistics During Global Crises: . Paper presented at The 35th NOFOMA CONFERENCE, The Nordic Logistics Research Network, Helsinki - Espoo, Finland, June 14-16, 2023..
Open this publication in new window or tab >>The Selective Logistics Service Provider: Creating the right customer mix to unlock economy of scale
2023 (English)In: NOFOMA 2023 – Logistics During Global Crises, 2023Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Purpose

To create economies of scale in operational units, service providers need to efficiently mix the right customers’ products in their different operational units. The purpose of the study is to explore how service providers/3PL create economies of scale by combining warehousing and sharing resources between customers, aka achieving advantages by unlocking the effects from economy of scale by increasing the utilization rate in operational units.

Design/methodology/approach

The paper has an explorative approach with data collected through semi-structured interviews. The analysis draws from economies of scale and service literature, to identify how service providers create economies of scale in everyday operations.

Findings

Service providers that create the right mix of customers for their different operational unit’s abilities to utilize economy of scale advantages, provide better services and lower cost to their customer. The service providers therefore need to create the right mix of customers, based of differences like fluctuating buying patterns and similarities like product size, weight, handling possibilities. Furthermore, understanding their customer’s customer is also a way to create the right mix of customers.

Practical implications

Service providers can be aware of the selective matching process to enable the sharing of resources between customers to create economies of scale. By selecting customers with different buying patterns but with similar product sizes the service provider can aggregate a stable demand and thereby increase utilization rate in their own operations.

Original/value

The paper contributes to an understanding of how service providers can enable economies of scale by integrating their customers. It also highlights the importance of relationships, trust and control.

Keywords
Service provider, Third party logistics, Economy of scale, B2B relationships, Logistics, SCM.
National Category
Business Administration
Identifiers
urn:nbn:se:hb:diva-31310 (URN)
Conference
The 35th NOFOMA CONFERENCE, The Nordic Logistics Research Network, Helsinki - Espoo, Finland, June 14-16, 2023.
Available from: 2024-01-14 Created: 2024-01-14 Last updated: 2024-01-15Bibliographically approved
Kumar, V., Ekwall, D. & Zhang, D. S. (2022). Investigation of rental business model for collaborative consumption - workwear garment renting in business-to-business scenario. Resources, Conservation and Recycling, 182, Article ID 106314.
Open this publication in new window or tab >>Investigation of rental business model for collaborative consumption - workwear garment renting in business-to-business scenario
2022 (English)In: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, Vol. 182, article id 106314Article in journal (Refereed) Published
Keywords
Collaborative consumption, Workwear apparel renting, Discrete event simulation, Business-to-business
National Category
Economics Business Administration Textile, Rubber and Polymeric Materials
Research subject
Business and IT; Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-27723 (URN)10.1016/j.resconrec.2022.106314 (DOI)000806898600001 ()2-s2.0-85127784023 (Scopus ID)
Available from: 2022-04-08 Created: 2022-04-08 Last updated: 2023-02-06Bibliographically approved
Ekwall, D. & Lantz, B. (2022). Seasonality of incident types in transport crime – Analysis of TAPA statistics. Journal of Transportation Security
Open this publication in new window or tab >>Seasonality of incident types in transport crime – Analysis of TAPA statistics
2022 (English)In: Journal of Transportation Security, ISSN 1938-7741, E-ISSN 1938-775XArticle in journal (Refereed) Epub ahead of print
Abstract [en]

This paper examines weekly and annual seasonality in incident categories to find patterns and trends in transport crime globally, concerning the value of stolen goods, incident frequency and incident category. Secondary data is utilized to analyse a contemporary challenge in logistics and supply chain research, namely theft and robbery of goods during shipment. The research is based on the TAPA global IIS transport-related crime database. Incident frequencies and mean values are analysed primarily with chi-square tests and analyses of variance (ANOVAs). The results are analysed and discussed within a frame of reference consisting of theories from logistics and criminology. The main conclusion is that there is an annual as well as a weekly seasonality of most incident categories, but the patterns vary among incident categories. The results are primarily limited by the content and classification within the TAPA IIS database.

Keywords
Supply chain risk, Antagonistic threats, Transport, Value of stolen cargo, Cargo theft incident categories
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:hb:diva-28657 (URN)10.1007/s12198-022-00254-w (DOI)000854670500001 ()2-s2.0-85138299414 (Scopus ID)
Available from: 2022-09-26 Created: 2022-09-26 Last updated: 2022-11-04Bibliographically approved
Ekwall, D. & Kovacs, G. (2021). Trade wars, embargos and sanctions: Implications for supply chain management. In: : . Paper presented at The 33rd annual NOFOMA conference; was planned to be held in Reykjavik, Iceland but went on-line 28-30 September 2021..
Open this publication in new window or tab >>Trade wars, embargos and sanctions: Implications for supply chain management
2021 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Purpose

The purpose of the study is to explore the logistics and SC effects linked to trade wars, embargos, and sanctions, or even other geopolitical events that effects and alters the current status quo of international trade and business relations. The paper also provides a research agenda for SCM on this basis.

Design/methodology/approach

This is a conceptual paper based on a system approach, which emphasizes a holistic view instead of the characteristics of the different parts. The paper revisits macro-economic and geopolitical developments and evaluates their impact on, and implications for supply chains.

Findings

The paper frames supply chains within macro-economic and geopolitical events and their development. It shows that causal relationships between acts of trade conflict to an actual and intended change in the trade between actors are weak, paradoxical, and non-linear. Outside of conflicts, changes to the rules and regulations in international business are slow and predictable, allowing for companies and their supply chains to adapt. Trade wars make the changes in trade regulations less predictable but they are also introduced at a much higher pace. This results in higher uncertainty for all involved actors. This also results in a new supply chain systemic behaviour, which is better understood as a complex system instead of the more traditional supply chain view of stable links and nodes.

Originality/value

The paper contributes to the understanding of geopolitical developments and their implications for supply chain management and develops a specific research agenda for supply chain management.

Keywords
Supply chain management, supply chain strategy, international trade, trade wars, geopolitical conflicts
National Category
Transport Systems and Logistics
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-26902 (URN)
Conference
The 33rd annual NOFOMA conference; was planned to be held in Reykjavik, Iceland but went on-line 28-30 September 2021.
Available from: 2021-11-15 Created: 2021-11-15 Last updated: 2022-01-06Bibliographically approved
Ekwall, D. & Lantz, B. (2020). The moderating role of transport chain location in cargo theft risk. The TQM Journal, 32(5), 1003-1019
Open this publication in new window or tab >>The moderating role of transport chain location in cargo theft risk
2020 (English)In: The TQM Journal, ISSN 1754-2731, E-ISSN 1754-274X, Vol. 32, no 5, p. 1003-1019Article in journal (Refereed) Published
Abstract [en]

Purpose: The purpose of this paper is to explore cargo theft risk and security for different product types at different locations along a transport chain. Design/methodology/approach: This study is based on a system-theoretical approach. The research method is deductive, as the analysis is based on secondary data and results from a questionnaire. The results are analysed based on supply chain risk management (SCRM) theories. Findings: Due to substantial interaction effects, the type of product and transport chain location must be considered to determine the correct level of security. Specifically, the product type is more significant, since the general cargo theft risk is higher. Furthermore, the transport industry has three perspectives on security responses to cargo theft, namely, demanded, needed and actual security, which differ depending on the product type and transport chain location. Research limitations/implications: This database is structured according to the global Transported Asset Protection Association organisational structure, which implies that there are three main databases: Europe, Middle East and Africa, Americas, and Asia-Pacific. Practical implications: This study has both research and practical implications, as it examines security within freight transport from three perspectives, linked to general cargo theft risk and goods owners’ requirements. Originality/value: This study addresses the contemporary SCRM problem of cargo theft using actual crime statistics and the industry understanding of required generic security levels. © 2019, Emerald Publishing Limited.

Place, publisher, year, edition, pages
Emerald Group Holdings Ltd., 2020
Keywords
Cargo theft, Product type, Supply chain risk, Supply chain security, Transport chain location, Crime, Location, Risk management, Supply chains, Design/methodology/approach, Organisational structure, Product types, Supply chain risk management (SCRM), Theoretical approach, Freight transportation
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:hb:diva-26903 (URN)10.1108/TQM-01-2019-0025 (DOI)000998665600006 ()2-s2.0-85073988663 (Scopus ID)
Note

Export Date: 15 November 2021; Article; Correspondence Address: Ekwall, D.; Faculty of Textiles, Sweden; email: daniel.ekwall@hb.se; Correspondence Address: Ekwall, D.; Department of Supply Chain Management and Social Responsibility, Finland; email: daniel.ekwall@hb.se

Available from: 2021-11-15 Created: 2021-11-15 Last updated: 2024-02-01Bibliographically approved
Ekwall, D. & Lantz, B. (2020). The relationship between impact and probability in supply chain risk management: a cargo theft example. International Journal of Decision Sciences, Risk and Management, 9(4), 241-241
Open this publication in new window or tab >>The relationship between impact and probability in supply chain risk management: a cargo theft example
2020 (English)In: International Journal of Decision Sciences, Risk and Management, ISSN 1753-7169, E-ISSN 1753-7177, Vol. 9, no 4, p. 241-241Article in journal (Refereed) Published
Abstract [en]

This study analyses the relationship between probability and impact for different combinations of incident and transport chain location type based on supply chain risk management theories. A deductive research method was used via employing data from the transport-related crime database incident information service (IIS). While the total risk may be the same for different probability-impact combinations, different risk management strategies are required. Regressing probability on impact gives an estimated effect of about–0.5, instead of the theoretically expected –1, indicating that an impact reducing strategy may reduce the total cargo theft risk more than a probability-focused strategy. An alternative risk ranking approach was suggested, which emphasises impact risk as more important than probability risk, implying that certain modi operandi are generating higher impact losses. The risk management strategy should therefore focus on reducing the probability for those incident categories

Keywords
supply chain risk, concept of risk, transport chain location, cargo theft, risk management
National Category
Transport Systems and Logistics
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-26904 (URN)10.1504/ijdsrm.2020.114311 (DOI)
Available from: 2021-11-15 Created: 2021-11-15 Last updated: 2022-01-06Bibliographically approved
Kumar, V. & Ekwall, D. (2019). Responding the market demand and improving product utilization using rent-and-sell strategy. In: : . Paper presented at The 6th International EurOMA Sustainable Operations and Supply Chains Forum, Gothenburg, Sweden, March 18-19, 2019..
Open this publication in new window or tab >>Responding the market demand and improving product utilization using rent-and-sell strategy
2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The purpose of this article is to analyse a business scenario, which combines the apparel rent-and-sell strategies to maximize apparel utilization while reducing the overall demand for new products. The developed game theory models hypothesize aspects including product quality, manufacturing cost, product use-cycles, and renting as alternate to buying to investigate their impact on the supply chain actors. Further, the developed supply chain scenarios have been numerically illustrated and compared against the sell-only business scenario to quantify the impact of product renting.

Keywords
game theory, supply chain setup, alternative business model, product utilization
National Category
Business Administration
Research subject
Textiles and Fashion (General); Business and IT
Identifiers
urn:nbn:se:hb:diva-28561 (URN)
Conference
The 6th International EurOMA Sustainable Operations and Supply Chains Forum, Gothenburg, Sweden, March 18-19, 2019.
Available from: 2022-09-11 Created: 2022-09-11 Last updated: 2022-09-12Bibliographically approved
Paras, M. K., Wang, L., Chen, Y., Curteza, A., Pal, R. & Ekwall, D. (2018). A Sustainable Application Based on Grouping Genetic Algorithm for Modularized Redesign Model in Apparel Reverse Supply Chain. Sustainability, 10(9), Article ID 3013.
Open this publication in new window or tab >>A Sustainable Application Based on Grouping Genetic Algorithm for Modularized Redesign Model in Apparel Reverse Supply Chain
Show others...
2018 (English)In: Sustainability, E-ISSN 2071-1050, Vol. 10, no 9, article id 3013Article in journal (Refereed) Published
Abstract [en]

The scarcity of natural resources and the problem of pollution have initiated the need for extending the life and use of existing products. The concept of the reverse supply chain provides an opportunity to recover value from discarded products. The potential for recovery and the improvement of value in the reverse supply chain of apparel has been barely studied. In this research, a novel modularized redesign model is developed and applied to the garment redesign process. The concept of modularization is used to extract parts from the end-of-use or end-of-life of products. The extracted parts are reassembled or reconstructed with the help of a proposed group genetic algorithm by using domain and industry-specific knowledge. Design fitness is calculated to achieve the optimal redesign. Subsequently, the practical relevance of the model is investigated with the help of an industrial case in Sweden. The case study finding reveals that the proposed method and model to calculate the design fitness could simplify the redesign process. The design fitness calculation is illustrated with the example of a polo t-shirt. The redesigned system-based modularization is in accordance with the practical situations because of its flexibility and viability to formulate redesign decisions. The grouping genetic algorithm could enable fast redesign decisions for designers.

Keywords
reuse design, upcycling, modularization, garment industry, sustainability
National Category
Business Administration
Research subject
Textiles and Fashion (General)
Identifiers
urn:nbn:se:hb:diva-15090 (URN)10.3390/su10093013 (DOI)000446770200056 ()2-s2.0-85052309286 (Scopus ID)
Available from: 2018-09-11 Created: 2018-09-11 Last updated: 2022-02-10Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0003-0871-1838

Search in DiVA

Show all publications