Pub Date : 2024-08-08DOI: 10.1007/s10479-024-06200-4
Joost Bosker, Marc Gürtler
The literature finds that cultural differences have a negative impact on the success of international labor migration. However, modeling cultural effects requires a variety of individual-level, firm-level and country-level data that are not sufficiently considered in the literature. Precisely, previous migration experiences are not taken into account and the culture effect is not isolated from adaptation effects that occur with any change of employer. We find that an identified culture effect is biased if such data are not considered. To take these aspects into account, we utilize soccer data with its abundance of single player information and leverage the approaches established in Operations Research to model soccer player performance. To this end, we extend a prominent mixed-effects model to fit the case of international migration and find contrary results compared to the literature: cultural differences positively affect employee value in the long term and we identify a distinct and positive culture effect in the short run for switches between industry-leading firms. Finally, we show that our results are not driven by peculiarities of soccer player data by using a reduced model without isolating general adaptation difficulties from cultural differences. In this (too) simple model, in accordance with the literature, the biased negative culture effect emerges.
{"title":"The impact of cultural differences on the success of elite labor migration—Evidence from professional soccer","authors":"Joost Bosker, Marc Gürtler","doi":"10.1007/s10479-024-06200-4","DOIUrl":"10.1007/s10479-024-06200-4","url":null,"abstract":"<div><p>The literature finds that cultural differences have a negative impact on the success of international labor migration. However, modeling cultural effects requires a variety of individual-level, firm-level and country-level data that are not sufficiently considered in the literature. Precisely, previous migration experiences are not taken into account and the culture effect is not isolated from adaptation effects that occur with any change of employer. We find that an identified culture effect is biased if such data are not considered. To take these aspects into account, we utilize soccer data with its abundance of single player information and leverage the approaches established in Operations Research to model soccer player performance. To this end, we extend a prominent mixed-effects model to fit the case of international migration and find contrary results compared to the literature: cultural differences positively affect employee value in the long term and we identify a distinct and positive culture effect in the short run for switches between industry-leading firms. Finally, we show that our results are not driven by peculiarities of soccer player data by using a reduced model without isolating general adaptation difficulties from cultural differences. In this (too) simple model, in accordance with the literature, the biased negative culture effect emerges.</p></div>","PeriodicalId":8215,"journal":{"name":"Annals of Operations Research","volume":"341 2-3","pages":"781 - 824"},"PeriodicalIF":4.4,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10479-024-06200-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-06DOI: 10.1007/s10479-024-06193-0
Moshe Levy
Any utility function that is unbounded either from below or from above implies paradoxical behavior. However, these paradoxes may be regarded as irrelevant if they involve wealth levels that are realistically meaningless. Employing real-world constraints on wealth reveals that CRRA utility with relative risk aversion outside of the range 0.75–1.15 yields paradoxical choices that very few individuals, if any, would ever make. Thus, relative risk aversion must be close to 1, the value corresponding to log preferences. These results shed new light on the longstanding debate about the geometric-mean criterion and the argument of stocks for the long-run.
{"title":"Relative risk aversion must be close to 1","authors":"Moshe Levy","doi":"10.1007/s10479-024-06193-0","DOIUrl":"https://doi.org/10.1007/s10479-024-06193-0","url":null,"abstract":"<p>Any utility function that is unbounded either from below or from above implies paradoxical behavior. However, these paradoxes may be regarded as irrelevant if they involve wealth levels that are realistically meaningless. Employing real-world constraints on wealth reveals that CRRA utility with relative risk aversion outside of the range 0.75–1.15 yields paradoxical choices that very few individuals, if any, would ever make. Thus, relative risk aversion must be close to 1, the value corresponding to log preferences. These results shed new light on the longstanding debate about the geometric-mean criterion and the argument of stocks for the long-run.</p>","PeriodicalId":8215,"journal":{"name":"Annals of Operations Research","volume":"17 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141936534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-06DOI: 10.1007/s10479-024-06198-9
A. S. Melo, L. B. Dos Santos, M. A. Rojas-Medar
In this paper, we present necessary and sufficient optimality conditions for multiobjective problems with equality and inequality constraints defined in Banach spaces. We focus on the nonregular case when the linear independence qualification or Mangasarian-Fromovitz constraint qualification are not satisfied at the solution of the multiobjective problem. For this case, we present new generalized p-order necessary optimality conditions of Karush–Kuhn–Tucker type. The conditions subsume the classical conditions and give new and nontrivial conditions for the nonregular case. Our results were obtained from the theory of p-regularity, introduced by Brezhneva and Tret’yakov (SIAM J Control Optim 42:729-745, 2003). Some examples are presented to illustrate the results.
本文提出了在巴拿赫空间中定义的带有相等和不相等约束的多目标问题的必要和充分最优条件。我们将重点放在非规则情况下,即多目标问题的解不满足线性独立性约束条件或 Mangasarian-Fromovitz 约束条件。针对这种情况,我们提出了新的广义 p 阶必要最优性条件(Karush-Kuhn-Tucker 类型)。这些条件包含了经典条件,并为非规则情况提供了新的非难条件。我们的结果来自 Brezhneva 和 Tret'yakov 提出的 p-regularity 理论 (SIAM J Control Optim 42:729-745, 2003)。本文列举了一些例子来说明这些结果。
{"title":"Higher-order optimality conditions for nonregular multiobjective problem","authors":"A. S. Melo, L. B. Dos Santos, M. A. Rojas-Medar","doi":"10.1007/s10479-024-06198-9","DOIUrl":"https://doi.org/10.1007/s10479-024-06198-9","url":null,"abstract":"<p>In this paper, we present necessary and sufficient optimality conditions for multiobjective problems with equality and inequality constraints defined in Banach spaces. We focus on the nonregular case when the linear independence qualification or Mangasarian-Fromovitz constraint qualification are not satisfied at the solution of the multiobjective problem. For this case, we present new generalized <i>p</i>-order necessary optimality conditions of Karush–Kuhn–Tucker type. The conditions subsume the classical conditions and give new and nontrivial conditions for the nonregular case. Our results were obtained from the theory of <i>p</i>-regularity, introduced by Brezhneva and Tret’yakov (SIAM J Control Optim 42:729-745, 2003). Some examples are presented to illustrate the results.</p>","PeriodicalId":8215,"journal":{"name":"Annals of Operations Research","volume":"119 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141936337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-06DOI: 10.1007/s10479-024-06207-x
Yu-Hsin Hung, Hong-Ying Shen, Chia-Yen Lee
In manufacturing systems, preventive maintenance plays a critical role in maintaining product yield, product quality, and machine reliability. Inappropriate maintenance strategies can lead to low yields, faulty products, machine failures, and disrupted operation of upstream and downstream machines. However, developing maintenance strategies in a stochastic factory environment can be challenging due to factors such as varying levels of deterioration, unpredictable maintenance times, and fluctuating machine workloads. Since previous studies formulated the maintenance decision using a Markov decision process, we propose a deep reinforcement learning method to derive the maintenance policy. We also consider the multi-objective method, hypervolume, to illustrate the trade-off between maintenance cost, production loss, and yield loss. The simulation study shows that our proposed method outperforms age-dependent and run-to-failure strategies in ten different scenarios. In addition to obtaining an optimal approximate policy, visualizing action trajectories provides managerial insights for optimizing and balancing different costs. Moreover, implementing preventive maintenance policies derived from our proposed method can enhance the robustness of supply chain operations. By reducing the risk of unexpected equipment failures, supply chains can achieve higher levels of operational reliability and continuity.
{"title":"Deep reinforcement learning-based preventive maintenance for repairable machines with deterioration in a flow line system","authors":"Yu-Hsin Hung, Hong-Ying Shen, Chia-Yen Lee","doi":"10.1007/s10479-024-06207-x","DOIUrl":"https://doi.org/10.1007/s10479-024-06207-x","url":null,"abstract":"<p>In manufacturing systems, preventive maintenance plays a critical role in maintaining product yield, product quality, and machine reliability. Inappropriate maintenance strategies can lead to low yields, faulty products, machine failures, and disrupted operation of upstream and downstream machines. However, developing maintenance strategies in a stochastic factory environment can be challenging due to factors such as varying levels of deterioration, unpredictable maintenance times, and fluctuating machine workloads. Since previous studies formulated the maintenance decision using a Markov decision process, we propose a deep reinforcement learning method to derive the maintenance policy. We also consider the multi-objective method, hypervolume, to illustrate the trade-off between maintenance cost, production loss, and yield loss. The simulation study shows that our proposed method outperforms age-dependent and run-to-failure strategies in ten different scenarios. In addition to obtaining an optimal approximate policy, visualizing action trajectories provides managerial insights for optimizing and balancing different costs. Moreover, implementing preventive maintenance policies derived from our proposed method can enhance the robustness of supply chain operations. By reducing the risk of unexpected equipment failures, supply chains can achieve higher levels of operational reliability and continuity.</p>","PeriodicalId":8215,"journal":{"name":"Annals of Operations Research","volume":"28 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141936338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-06DOI: 10.1007/s10479-024-06156-5
Zhongxiang Chang, Zhongbao Zhou
Observation scheduling problem for agile earth observation satellites (OSPFAS) plays a critical role in management of agile earth observation satellites (AEOSs). Active imaging enriches the extension of OSPFAS, we call the novel problem as observation scheduling problem for AEOS with variable image duration (OSWVID). A cumulative image quality and a detailed energy consumption is proposed to build OSWVID as a bi-objective optimization model. Three multi-objective memetic algorithms, PD+NSGA-II, LA+NSGA-II and ALNS+NSGA-II, are then designed to solve OSWVID. Considering the heuristic knowledge summarized in our previous research, several operators are designed for improving these three algorithms respectively. Based on existing instances, we analyze the critical optimization parameters, evolution operators, and efficiency of these three algorithms based on extensive simulation experiments.
{"title":"Three multi-objective memetic algorithms for observation scheduling problem of active-imaging agile earth observation satellites","authors":"Zhongxiang Chang, Zhongbao Zhou","doi":"10.1007/s10479-024-06156-5","DOIUrl":"https://doi.org/10.1007/s10479-024-06156-5","url":null,"abstract":"<p>Observation scheduling problem for agile earth observation satellites (OSPFAS) plays a critical role in management of agile earth observation satellites (AEOSs). Active imaging enriches the extension of OSPFAS, we call the novel problem as observation scheduling problem for AEOS with variable image duration (OSWVID). A cumulative image quality and a detailed energy consumption is proposed to build OSWVID as a bi-objective optimization model. Three multi-objective memetic algorithms, PD+NSGA-II, LA+NSGA-II and ALNS+NSGA-II, are then designed to solve OSWVID. Considering the heuristic knowledge summarized in our previous research, several operators are designed for improving these three algorithms respectively. Based on existing instances, we analyze the critical optimization parameters, evolution operators, and efficiency of these three algorithms based on extensive simulation experiments.</p>","PeriodicalId":8215,"journal":{"name":"Annals of Operations Research","volume":"26 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141936339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-05DOI: 10.1007/s10479-024-06184-1
Martin J. Gruber
Harry Markowitz had a great influence on my career, first as a source of new ideas and later as a mentor and friend. My relationship with Harry started when I discovered his 1959 book, Portfolio Selection Efficient Diversification of Investments, while I was a Ph.D. student at Columbia University. In 1963, I was looking for inspiration for my Ph.D. thesis. I stumbled across Harry’s book in the Columbia library. I read this book cover to cover. It changed the way I thought about finance and helped me formulate and finish my thesis. Later, when Harry was Vice President (President-Elect), the term of the editor of the Journal of Finance expired. It was the Vice-President’s job, together with the board of the AFA, to select a new editor for the Journal of Finance. I was delighted when I got Harry’s call asking me, along with my frequent co-author (Ned Elton), if we would like to be co-editors of the Journal of Finance. Naturally, we accepted and remained as co-editors for five years. In 1994, I was elected as President of the American Finance Association. To be elected, one first has to be nominated, along with one other candidate to stand for election. I think that Harry selecting me to be co-editor of the Journal of Finance, and the five years I spent in that role, generally increased my name recognition and contributed to my being elected as President of the AFA.
{"title":"Harry Markowitz and my AFA presidential address","authors":"Martin J. Gruber","doi":"10.1007/s10479-024-06184-1","DOIUrl":"https://doi.org/10.1007/s10479-024-06184-1","url":null,"abstract":"<p>Harry Markowitz had a great influence on my career, first as a source of new ideas and later as a mentor and friend. My relationship with Harry started when I discovered his 1959 book, <i>Portfolio Selection Efficient Diversification of Investments,</i> while I was a Ph.D. student at Columbia University. In 1963, I was looking for inspiration for my Ph.D. thesis. I stumbled across Harry’s book in the Columbia library. I read this book cover to cover. It changed the way I thought about finance and helped me formulate and finish my thesis. Later, when Harry was Vice President (President-Elect), the term of the editor of the <i>Journal of Finance</i> expired. It was the Vice-President’s job, together with the board of the AFA, to select a new editor for the <i>Journal of Finance.</i> I was delighted when I got Harry’s call asking me, along with my frequent co-author (Ned Elton), if we would like to be co-editors of the <i>Journal of Finance</i>. Naturally, we accepted and remained as co-editors for five years. In 1994, I was elected as President of the American Finance Association. To be elected, one first has to be nominated, along with one other candidate to stand for election. I think that Harry selecting me to be co-editor of the <i>Journal of Finance,</i> and the five years I spent in that role, generally increased my name recognition and contributed to my being elected as President of the AFA.</p>","PeriodicalId":8215,"journal":{"name":"Annals of Operations Research","volume":"89 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141936340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fairness has an important influence on supply chain member's cooperative innovation, but few scholars consider the problem under fairness concern, especially lack the diversity analysis of the impact of different fairness reference points on innovation decisions. Therefore, the purpose of this work is to fill this gap. Our study focuses on the issue of collaborative innovation in a supply chain that includes a supplier who is impartial towards fairness and a retailer who places importance on fairness, and it analyzes this problem under three different fairness reference points. We generate our findings from three aspects, as follows: in contrast to the fairness-neutral scenario, the decisions made by the supply chain members become more conservative. Furthermore, the retailer may not always gain benefits from fairness unless the share of innovation costs is low. The innovation level and the retail price are lowest in the supplier's profit fairness reference points case if the retailer has low bargaining power and contributes a small percentage to the channel profit, because although the retailer cares about fairness, the small bargaining power and contribution percentage lead it without confidence to set the lowest price to take revenge on the supplier. The innovation level is higher under the firm contribution profit reference point than the Nash bargaining solution reference point case, which implies the latter has a more influence on collaborative innovation decision-making.
{"title":"The effects of different fairness reference points on supply chain members' collaborative innovation","authors":"Huimin Liu, Hui Hao, Zengqing Wei, Jingyun Su, Yaping Qu, Bangzhu Zhu","doi":"10.1007/s10479-024-06132-z","DOIUrl":"https://doi.org/10.1007/s10479-024-06132-z","url":null,"abstract":"<p>Fairness has an important influence on supply chain member's cooperative innovation, but few scholars consider the problem under fairness concern, especially lack the diversity analysis of the impact of different fairness reference points on innovation decisions. Therefore, the purpose of this work is to fill this gap. Our study focuses on the issue of collaborative innovation in a supply chain that includes a supplier who is impartial towards fairness and a retailer who places importance on fairness, and it analyzes this problem under three different fairness reference points. We generate our findings from three aspects, as follows: in contrast to the fairness-neutral scenario, the decisions made by the supply chain members become more conservative. Furthermore, the retailer may not always gain benefits from fairness unless the share of innovation costs is low. The innovation level and the retail price are lowest in the supplier's profit fairness reference points case if the retailer has low bargaining power and contributes a small percentage to the channel profit, because although the retailer cares about fairness, the small bargaining power and contribution percentage lead it without confidence to set the lowest price to take revenge on the supplier. The innovation level is higher under the firm contribution profit reference point than the Nash bargaining solution reference point case, which implies the latter has a more influence on collaborative innovation decision-making.</p>","PeriodicalId":8215,"journal":{"name":"Annals of Operations Research","volume":"23 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141936342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-05DOI: 10.1007/s10479-024-06183-2
Petr Hajek, Jean-Michel Sahut, Vladimir Olej
Multi-criteria decision making (MCDM) provides effective methods for dealing with the challenge of sorting credit ratings. This paper presents a novel data-driven MCDM sorting approach to predicting credit ratings. Our methodology combines the fuzzy TOPSIS-Sort-C model with the fuzzy best-worst approach, supported by a fuzzy cognitive map, to effectively deal with criteria interactions. This approach provides a corporate credit risk assessment, taking into account the uncertainties in credit risk assessment and relevance of its criteria by using fuzzy c-means and correlation-based feature selection. Our empirical analysis of 1138 US companies demonstrates the reliability of our model in dealing with a range of financial and non-financial indicators. The results demonstrate the potential of our methodology in credit rating assessment, with a good predictive performance relative to existing models.
{"title":"Credit rating prediction using a fuzzy MCDM approach with criteria interactions and TOPSIS sorting","authors":"Petr Hajek, Jean-Michel Sahut, Vladimir Olej","doi":"10.1007/s10479-024-06183-2","DOIUrl":"https://doi.org/10.1007/s10479-024-06183-2","url":null,"abstract":"<p>Multi-criteria decision making (MCDM) provides effective methods for dealing with the challenge of sorting credit ratings. This paper presents a novel data-driven MCDM sorting approach to predicting credit ratings. Our methodology combines the fuzzy TOPSIS-Sort-C model with the fuzzy best-worst approach, supported by a fuzzy cognitive map, to effectively deal with criteria interactions. This approach provides a corporate credit risk assessment, taking into account the uncertainties in credit risk assessment and relevance of its criteria by using fuzzy <i>c</i>-means and correlation-based feature selection. Our empirical analysis of 1138 US companies demonstrates the reliability of our model in dealing with a range of financial and non-financial indicators. The results demonstrate the potential of our methodology in credit rating assessment, with a good predictive performance relative to existing models.</p>","PeriodicalId":8215,"journal":{"name":"Annals of Operations Research","volume":"89 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141936443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Today's primary challenges in supply chains (SCs) include considerable greenhouse gas emissions, waste, and disruptions. Addressing these requires the examination of three interconnected SC paradigms, i.e. decarbonisation, resilience, and Closed-Loop SCs (CLSCs). This paper seeks to investigate and assess the criteria for decarbonised resilient CLSCs, as influenced by the global pandemic, specifically within the context of Iran's small and medium pharmaceutical enterprises, employing a mixed-method approach. Initially, a Systematic Literature Review was employed to identify a categorised list of decarbonised resilient CLSC criteria by determining the impact of COVID-19 on SCs. Afterwards, the list was indigenised via the fuzzy-Delphi method. Two popular Fuzzy Multi-Criteria Decision-Making methods, i.e. fuzzy Decision-Making Trial and Evaluation Laboratory and fuzzy Interpretive Structural Modelling-Matrix-based Multiplication Applied to a Classification (MICMAC), were then employed to investigate the finalised criteria. This paper has innovatively enhanced these methods by incorporating a multi-scenario analysis approach. The findings indicate that technological advancements, issues related to market and communication, and raw material markets significantly affect other criteria. Transportation and logistics are also crucial in reducing lead times, waste, and CO2 emissions. Two countermeasures are recommended for senior managers, i.e. (i) the identification and application of suitable basic and advanced technologies across each SC process and (ii) engaging in a coevolutionary process beginning with SMEs' cooperation and collaboration towards their co-creation. The importance of regulatory bodies was also emphasised in devising effective policies to improve the markets for raw materials and finished products.
{"title":"Decarbonised closed-loop supply chains resilience: examining the impact of COVID-19 toward risk mitigation by a fuzzy multi-layer decision-making framework","authors":"Hannan Amoozad Mahdiraji, Fatemeh Yaftiyan, Jose Arturo Garza-Reyes, Seyed Hossein Razavi Hajiagha, Yigit Kazancoglu","doi":"10.1007/s10479-024-06093-3","DOIUrl":"https://doi.org/10.1007/s10479-024-06093-3","url":null,"abstract":"<p>Today's primary challenges in supply chains (SCs) include considerable greenhouse gas emissions, waste, and disruptions. Addressing these requires the examination of three interconnected SC paradigms, i.e. decarbonisation, resilience, and Closed-Loop SCs (CLSCs). This paper seeks to investigate and assess the criteria for decarbonised resilient CLSCs, as influenced by the global pandemic, specifically within the context of Iran's small and medium pharmaceutical enterprises, employing a mixed-method approach. Initially, a Systematic Literature Review was employed to identify a categorised list of decarbonised resilient CLSC criteria by determining the impact of COVID-19 on SCs. Afterwards, the list was indigenised via the fuzzy-Delphi method. Two popular Fuzzy Multi-Criteria Decision-Making methods, i.e. fuzzy Decision-Making Trial and Evaluation Laboratory and fuzzy Interpretive Structural Modelling-Matrix-based Multiplication Applied to a Classification (MICMAC), were then employed to investigate the finalised criteria. This paper has innovatively enhanced these methods by incorporating a multi-scenario analysis approach. The findings indicate that technological advancements, issues related to market and communication, and raw material markets significantly affect other criteria. Transportation and logistics are also crucial in reducing lead times, waste, and CO<sub>2</sub> emissions. Two countermeasures are recommended for senior managers, i.e. (i) the identification and application of suitable basic and advanced technologies across each SC process and (ii) engaging in a coevolutionary process beginning with SMEs' cooperation and collaboration towards their co-creation. The importance of regulatory bodies was also emphasised in devising effective policies to improve the markets for raw materials and finished products.</p>","PeriodicalId":8215,"journal":{"name":"Annals of Operations Research","volume":"59 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141936341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-02DOI: 10.1007/s10479-024-06161-8
Mostafa Khorramizadeh, Roghayeh Javvi
In this paper, we present an integer programming formulation for the windy profitable location rural postman problem (WPLRPP). We state and prove a theorem concerning the dimension of the associated polyhedron. Then, we use this theorem to study some trivial facets of the presented polyhedron. Furthermore, we adapt and validate several large families of valid inequalities for the WPLRPP. We also develop an efficient branch-and-cut algorithm for solving large WPLRPP instances, which leverages those inequalities. We compare our presented branch-and-cut algorithm with other efficient algorithms in the literature. The numerical results show that our algorithm solves larger problem instances and requires considerably less computing time than other algorithms in the literature.
{"title":"A branch-and-cut algorithm for the windy profitable location rural postman problem","authors":"Mostafa Khorramizadeh, Roghayeh Javvi","doi":"10.1007/s10479-024-06161-8","DOIUrl":"10.1007/s10479-024-06161-8","url":null,"abstract":"<div><p>In this paper, we present an integer programming formulation for the windy profitable location rural postman problem (WPLRPP). We state and prove a theorem concerning the dimension of the associated polyhedron. Then, we use this theorem to study some trivial facets of the presented polyhedron. Furthermore, we adapt and validate several large families of valid inequalities for the WPLRPP. We also develop an efficient branch-and-cut algorithm for solving large WPLRPP instances, which leverages those inequalities. We compare our presented branch-and-cut algorithm with other efficient algorithms in the literature. The numerical results show that our algorithm solves larger problem instances and requires considerably less computing time than other algorithms in the literature.</p></div>","PeriodicalId":8215,"journal":{"name":"Annals of Operations Research","volume":"341 2-3","pages":"993 - 1022"},"PeriodicalIF":4.4,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141882603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}