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  • Wiley  (7)
  • Economics  (7)
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  • Wiley  (7)
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  • Economics  (7)
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  • 1
    Online Resource
    Online Resource
    Wiley ; 2022
    In:  Production and Operations Management
    In: Production and Operations Management, Wiley
    Abstract: Motivated by a realworld practice of a China Post sortation center, this study considers the deployment of Internet of Things (IoT) technology to improve the efficiency of a human–robot hybrid sortation system. In this system, IoT technology enables responsive adjustment of the manual capacity to alleviate the congestion effect of increasing parcel flow on robotic sorting efficiency. We begin with a predictive analysis of a real‐life dataset to quantify the congestion effect on robotic sorting efficiency, and examine the nonstationary behavior of the parcel flow process. Subsequently, we design an online algorithm using IoT advance information (which refers to advance observation of some parcel flows before their actual arrivals) for efficiently adjusting the manual capacity. We develop theoretical guarantee for the effectiveness of the online algorithm by bounding its regret, and also demonstrate that the long‐term expected regret rate is zero under mild conditions. Via extensive simulation experiments, we find that our online algorithm outperforms the China Post sortation center's current policy and conventional Markov dynamic program in terms of computational efficiency and solution quality. The simulation results also demonstrate that the value of IoT technology to the sortation center can be significant, and shed insights on IoT investment by revealing the diminishing return of expanding the horizon of IoT advance information.
    Type of Medium: Online Resource
    ISSN: 1059-1478 , 1937-5956
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2151364-8
    detail.hit.zdb_id: 1108460-1
    SSG: 3,2
    Location Call Number Limitation Availability
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  • 2
    Online Resource
    Online Resource
    Wiley ; 2015
    In:  International Transactions in Operational Research Vol. 22, No. 5 ( 2015-09), p. 913-927
    In: International Transactions in Operational Research, Wiley, Vol. 22, No. 5 ( 2015-09), p. 913-927
    Abstract: We consider an online scheduling problem on two identical parallel machines with a single server. Jobs arrive one by one and each job has to be loaded by the server before being processed on one of the machines, and unloaded immediately by the server after its processing. Both loading and unloading times are equal to one time unit. The goal is to minimize the makespan. For the variant of the problem involving both loading and unloading operations, we present an online algorithm with competitive ratio of 5/3. For the variant with loading operation only, we show that the competitive ratio of list scheduling is at least 8/5 and provide an improved online algorithm with competitive ratio of 11/7. Finally, we discuss the lower bounds for these problems. We show that both variants have a lower bound of 3/2. Furthermore, we show that the lower bound of the first variant is at least 8/5 if the online algorithm satisfies a certain constraint.
    Type of Medium: Online Resource
    ISSN: 0969-6016 , 1475-3995
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 2019815-2
    SSG: 3,2
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  • 3
    Online Resource
    Online Resource
    Wiley ; 2011
    In:  The Manchester School Vol. 79, No. 6 ( 2011-12), p. 1179-1196
    In: The Manchester School, Wiley, Vol. 79, No. 6 ( 2011-12), p. 1179-1196
    Type of Medium: Online Resource
    ISSN: 1463-6786
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2011
    detail.hit.zdb_id: 1418920-3
    detail.hit.zdb_id: 1473781-4
    SSG: 3,4
    Location Call Number Limitation Availability
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  • 4
    Online Resource
    Online Resource
    Wiley ; 2018
    In:  International Transactions in Operational Research Vol. 25, No. 6 ( 2018-11), p. 1811-1829
    In: International Transactions in Operational Research, Wiley, Vol. 25, No. 6 ( 2018-11), p. 1811-1829
    Abstract: This paper develops closed‐loop supply chain models with alliance recycling under two financing systems for recycling used products, that is, pay‐as‐you‐throw (PAYT) and recycling fund (RF). The primary goal behind analytic formulation is to investigate the differences between the two financing systems and determine which one performs better, and to examine the impact of target recycling rate and competition between recycling alliances (RAs) on channel decisions. We find that the PAYT system is always more beneficial to customers and the retailer, while the RF system increases the social welfare. If there is no competition between RAs, which system performs better for the RA depends on the baseline of subsidy fee, while which system performs better for manufacturers depends on their shares. However, if there is competition between RAs, the RF system is favored by the disadvantaged RA. Moreover, the restriction on target recycling rate has an effect on channel decisions.
    Type of Medium: Online Resource
    ISSN: 0969-6016 , 1475-3995
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2019815-2
    SSG: 3,2
    Location Call Number Limitation Availability
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  • 5
    Online Resource
    Online Resource
    Wiley ; 2019
    In:  Production and Operations Management Vol. 28, No. 2 ( 2019-02), p. 276-291
    In: Production and Operations Management, Wiley, Vol. 28, No. 2 ( 2019-02), p. 276-291
    Abstract: We investigate whether a firm's risk pooling affects its analysts’ forecasts, specifically in terms of forecast accuracy and their use of public vs. private information, and how risk pooling interacts with a firm's position in the supply chain to affect analysts’ forecasts. We use a social network analysis method to operationalize risk pooling and supply chain hierarchy, and find that risk pooling significantly reduces analysts’ forecast errors and increases (decreases) their use of public (private) information. We also find that the positive (negative) relationships between risk pooling and analyst forecast accuracy and analysts’ use of public (private) information are more pronounced upstream than downstream in a supply chain.
    Type of Medium: Online Resource
    ISSN: 1059-1478 , 1937-5956
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2019
    detail.hit.zdb_id: 2151364-8
    detail.hit.zdb_id: 1108460-1
    SSG: 3,2
    Location Call Number Limitation Availability
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  • 6
    Online Resource
    Online Resource
    Wiley ; 2023
    In:  Production and Operations Management Vol. 32, No. 7 ( 2023-07), p. 2154-2172
    In: Production and Operations Management, Wiley, Vol. 32, No. 7 ( 2023-07), p. 2154-2172
    Abstract: Network literature has widely documented that the managerial ties between corporate leaders in two firms can promote their economic exchanges in supply chains, that is, social embeddedness. In this study, we strive to advance this line of inquiry by exploring the dynamics of such socially embedded supply chains, examining whether and when the dissolution of managerial ties between two firms would cause the subsequent termination of their supplier–buyer exchanges. We address this question by distinguishing two types of socially embedded supply chains based on their different relational origins: business‐with‐friend links in which the managerial ties precede the supply chains, and friend‐in‐business links in which the supplier–buyer exchanges precede the managerial ties. We posit that the managerial tie dissolution has a negligible effect on the subsequent termination of supply chains in business‐with‐friend links. In contrast, in friend‐in‐business links, the dissolution of managerial ties between two firms is associated with a significantly higher likelihood for their supplier–buyer exchanges to dissolve afterward. We find strong empirical evidence for the above propositions using a nuanced data set that integrates the managerial tie information and the supply chain data. In sum, we show that socially embedded supply chains with different origins (“doing business with friends” vs. “making friends in business”) would have distinct patterns of evolution and dissolution.
    Type of Medium: Online Resource
    ISSN: 1059-1478 , 1937-5956
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2151364-8
    detail.hit.zdb_id: 1108460-1
    SSG: 3,2
    Location Call Number Limitation Availability
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  • 7
    Online Resource
    Online Resource
    Wiley ; 2022
    In:  Production and Operations Management Vol. 31, No. 2 ( 2022-02), p. 547-560
    In: Production and Operations Management, Wiley, Vol. 31, No. 2 ( 2022-02), p. 547-560
    Abstract: We study a decentralized admission control problem with capacity borrowing. In this problem, the admission decision is made by each server who is assigned dedicated capacity. However, a server can borrow capacity from other servers if his dedicated capacity is exhausted. The borrower compensates the lender by a payment equal to the “borrowing cost.” Hence, the servers share their capacities via borrowing, but they also compete against each other for their pooled capacities. We formulate this problem as a stochastic dynamic game and characterize the equilibrium strategic admission behavior of servers. We show that the critical factors that affect the equilibrium behavior and the system revenue are the magnitude of the borrowing cost, the arrival rate of customers and the revenue difference between different classes of customers. We have identified conditions under which servers maximizing their own payoffs end up making decisions that benefit the system. Our study highlights the important roles that the borrowing cost plays in shaping servers’ behavior in service systems and provides concrete guidance for practitioners to design a decentralized admission control system.
    Type of Medium: Online Resource
    ISSN: 1059-1478 , 1937-5956
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2151364-8
    detail.hit.zdb_id: 1108460-1
    SSG: 3,2
    Location Call Number Limitation Availability
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