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作者：Haubitz, Christiane B.; Thonemann, Ulrich W.
作者单位：University of Cologne
摘要：Inventory optimization approaches typically optimize steady-state performance, but do not consider the transition of an initial state to the optimized state. In this study, we address this transition. Our research is motivated by a company that implemented an improved inventory policy for its spare parts division. The improved policy suggested new base stock levels for the majority of the parts. For parts with increased base stock levels, inventory increases were realized after the part lead t...
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作者：Gupta, Diwakar; Mehrotra, Mili; Tang, Xiaoxu
作者单位：University of Texas System; University of Texas Austin; University of Illinois System; University of Illinois Urbana-Champaign; Wells Fargo Company
摘要：The Centers for Medicare and Medicaid Services (CMS) has introduced several Episode-based Payment Models. Episodes are combinations of pre-acute, acute, and post-acute services for particular medical conditions. During the year, CMS pays hospitals according to historical norms. At the end of the year, these payments are reconciled against a target price, resulting in either a gain or a loss for the hospital. The hospital may also realize gains or losses from its internal operations. It may inc...
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作者：Xie, Yangyang; Xie, Lei; Lu, Meng; Yan, Houmin
作者单位：Chinese Academy of Sciences; University of Science & Technology of China, CAS; Shanghai University of Finance & Economics; City University of Hong Kong
摘要：In this study, as an alternative to the surplus utility, we propose a performance-price-ratio (PPR) utility and specialize the customer choice model with a PPR maximization criterion. With the PPR-based choice model, we investigate a pricing game between retailers in a competitive market. Through transferring the decision variable from price to performance-price ratio, the first-order condition of the game becomes a linear equation system, which enables us to develop a closed-form equilibrium ...
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作者：Sahinyazan, Feyza G.; Rancourt, Marie-Eve; Verter, Vedat
作者单位：Simon Fraser University; Universite de Montreal; HEC Montreal; Michigan State University; Michigan State University's Broad College of Business
摘要：Aid organizations choose their service providers through reverse auctions to decrease their operational costs, and many of them award the contracts to the lowest bidders, which often leads to aggressive bidding practices and compromised service quality. This is known as the abnormally low bids (ALBs) problem in public procurement. An ALB is defined as an unrealistically low bid submitted to win an auction, an amount at which the auctioned service cannot be provided reliably. The current litera...
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作者：Deng, Qiyuan; Fang, Xin; Lim, Yun Fong
作者单位：The Chinese University of Hong Kong, Shenzhen; The Chinese University of Hong Kong, Shenzhen; Singapore Management University
摘要：The growing population in cities and booming e-commerce activities create huge demand for urban last-mile delivery, exerting intense pressure on the cities' well-being. To keep congestion and pollution under control, a consolidator can operate an urban consolidation center (UCC) to bundle shipments from multiple carriers before the last-mile delivery. Alternatively, the consolidator can operate a peer-to-peer platform for the carriers to share delivery capacity. We provide guidance for the con...
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作者：He, Rongchuan; Lu, Ye
作者单位：Chinese Academy of Sciences; University of Science & Technology of China, CAS; City University of Hong Kong
摘要：The price-setting newsvendor problem is well studied in the literature. However, it is commonly assumed that retailers have complete demand information modeled as a function of price and random noise. In reality, a retailer may have very limited information on a demand model because a retailer who has exercised only a few prices does not have sufficient information to accurately estimate a demand model. This creates a gap between academic research and practical applications. In this study, we ...
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作者：Lu, Mengshi; Shen, Zuo-Jun Max
作者单位：Purdue University System; Purdue University; University of California System; University of California Berkeley; University of California System; University of California Berkeley
摘要：Over the past two decades, there has been explosive growth in the application of robust optimization in operations management (robust OM), fueled by both significant advances in optimization theory and a volatile business environment that has led to rising concerns about model uncertainty. We review some common modeling frameworks in robust OM, including the representation of uncertainty and the decision-making criteria, and sources of model uncertainty that have arisen in the literature, such...
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作者：Titman, Sheridan
作者单位：University of Texas System; University of Texas Austin
摘要：Firms along a supply chain are exposed to risks that emanate from shocks that affect the supply of the commodity at the beginning of the chain, as well as shocks to the demand for the products and services that are produced at the end of the supply chain. These risk exposures tend to depend on production technologies as well as supply and demand elasticities. A key takeaway is that firms that use commodity inputs cannot in general rely on either the historical covariance between input prices a...
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作者：Zhou, Wenhui; Wang, Dongmei; Huang, Weixiang; Guo, Pengfei
作者单位：South China University of Technology; City University of Hong Kong
摘要：This study studies the impact of loss aversion on queue configurations in a doubled-ended queueing system such as taxi stations. We assume that there exist two types of demands/passengers, namely, the short-haul and long-haul, with long-haul demand offering a larger monetary reward for drivers. Loss-averse drivers decide to either join or balk based on their overall utility. We first consider the passenger-side system to be a loss system; that is, an arriving passenger balks if there is no tax...
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作者：Secomandi, Nicola; Seshadri, Sridhar
作者单位：Carnegie Mellon University; University of Illinois System; University of Illinois Urbana-Champaign
