1999

最新文章

• The impact of product variety on automobile assembly operations: Empirical evidence and simulation analysis AI翻译
  作者：Fisher, ML; Ittner, CD
  作者单位：University of Pennsylvania
  摘要：This study examines the impact of product variety on automobile assembly plant performance using data from GM's Wilmington, Delaware plant, together with simulation analyses of a more general auto assembly line. We extend prior product variety studies by providing evidence on the magnitude of variety-related production losses, the mechanisms through which variety impacts performance, and the effects of option bundling and labor staffing policies on the costs of product variety. The empirical a...
• Improving service by informing customers about anticipated delays AI翻译
  作者：Whitt, W
  作者单位：AT&T
  摘要：This paper investigates the effect upon performance in a service system, such as a telephone call center, of giving waiting customers state information. Ln particular, the paper studies two M/M/s/r queueing models with balking and reneging. For simplicity, it is assumed that each customer is willing to wait a fixed time before beginning service. However, customers differ, so the delay tolerances for successive customers are random. In particular, it is assumed that the delay tolerance of each ...
• What price fairness? A bargaining study AI翻译
  作者：Zwick, R; Chen, XP
  作者单位：Hong Kong University of Science & Technology; Indiana University System; Indiana University Bloomington
  摘要：Our study concerns bargaining behavior in situations where one party is in a stronger position than the other. We investigate both the tradeoff the favored party makes between pursuing his strategic advantage and giving weight to other players' concern for fairness, and the tradeoff the disadvantaged player makes between pursuing a fair outcome from a disadvantaged position and the cost of that pursuit, in particular, we hypothesize that the degree to which strategically strong players attempt...
• Performance of financial institutions AI翻译
  作者：Harker, PT; Zenios, S
  作者单位：University of Pennsylvania; University of Cyprus
• Simulation-based optimization with stochastic approximation using common random numbers AI翻译
  作者：Kleinman, NL; Spall, JC; Naiman, DQ
  作者单位：Johns Hopkins University; Johns Hopkins University Applied Physics Laboratory; Johns Hopkins University
  摘要：The method of Common Random Numbers is a technique used to reduce the variance of difference estimates in simulation optimization problems. These differences are commonly used to estimate gradients of objective functions as part of the process of determining optimal values for parameters of a simulated system. asymptotic results exist which show that using the Common Random Numbers method in the iterative Finite Difference Stochastic Approximation optimization algorithm (FDSA) can increase the...
• Managing supply chain demand variability with scheduled ordering policies AI翻译
  作者：Cachon, GP
  作者单位：Duke University
  摘要：This paper studies supply chain demand variability in a model with one supplier and N retailers that face stochastic demand. Retailers implement scheduled ordering policies: Orders occur at fixed intervals and are equal to some multiple of a fixed batch size. A method is presented that exactly evaluates costs. Previous research demonstrates that the supplier's demand variance declines as the retailers' order intervals are balanced, i.e., the same number of retailers order each period. This res...
• DEA duality on Returns to Scale (RTS) in production and cost analyses: An occurrence of multiple solutions and differences between production-based and cost-based RTS estimates AI翻译
  作者：Sueyoshi, T
  作者单位：Tokyo University of Science
  摘要：This article discusses the concept of RTS (Returns To Scale) in the framework of DEA (Data Envelopment Analysis) production and cost analyses, focusing on an occurrence of multiple solutions and how to deal with such a difficulty. Dual relationships between production-based and cost-based RTS estimates are also theoretically discussed in this study.
• Note: Optimal ordering decisions with uncertain cost and demand forecast updating AI翻译
  作者：Gurnani, H; Tang, CS
  作者单位：Hong Kong University of Science & Technology; University of California System; University of California Los Angeles
  摘要：We determine the optimal ordering policy for a retailer who has two instants to order a seasonal product from a manufacturer prior to a single selling season. While the demand is uncertain, the retailer can improve the forecast by utilizing the market signals observed between the first and second instants. However, because of the nature of the manufacturing environment, the unit cost at the second instant is uncertain and could be higher (or lower) than the unit cost at the first instant. To d...