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作者：Wu, DJ; Kleindorfer, PR
作者单位：University System of Georgia; Georgia Institute of Technology; University of Pennsylvania
摘要：This paper develops a framework for analyzing business-to-business (B2B) transactions and supply chain management based on integrating contract procurement markets with spot markets using capacity options and forwards. The framework is motivated by the emergence of B2B exchanges in several industrial sectors to facilitate such integrated contract and spot procurement. In the framework developed, a buyer and multiple sellers may either contract for delivery in advance (the contracting option) o...
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作者：Ding, M; Eliashberg, J; Huber, J; Saini, R
作者单位：Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; University of Pennsylvania; Duke University; George Mason University
摘要：E-commerce has proved to be fertile ground for new business models, which may be patented (for up to 20 years) and have potentially far-reaching impact on the e-commerce landscape. One such electronic market is the reverse-auction model popularized by Priceline com. There is still uncertainty surrounding the survival of such new electronic markets currently available on the Internet. Understanding user behavior is necessary for better assessment of these sites' survival. This paper adds to eco...
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作者：Whitt, W
作者单位：Columbia University
摘要：An algorithm is developed to rapidly compute approximations for all the standard steady-state performance measures in the basic call-center queueing model M/GI/s/r + GI, which has a Poisson arrival process, independent and identically distributed (IID) service times with a general distribution, s servers, r extra waiting spaces and IID customer abandonment times with a general distribution. Empirical studies of call centers indicate that the service-time and abandon-time distributions often ar...
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作者：Read, D; Frederick, S; Orsel, B; Rahman, J
作者单位：Durham University; Massachusetts Institute of Technology (MIT)
摘要：We describe a new anomaly in intertemporal choice-the date/delay effect: discount rates that are imputed when time is described using calendar dates (e.g., on October 17) are markedly lower than those revealed when future outcomes are described in terms of the corresponding delay (e.g., in six months). Date descriptions not only reduce discount rates, but also affect the implied shape of the discount function: When inferred from intertemporal choices between options referenced by calendar date...
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作者：Lieberman, MB; Dhawan, R
作者单位：University of California System; University of California Los Angeles; University System of Georgia; Georgia State University
摘要：T he resource-based view of the firm has become an important conceptual framework in strategic management but has been widely criticized for lack of an empirical base. To address this deficit, we utilize a new method for identifying interfirm differences in efficiency within the context of stochastic frontier production functions. Using data on Japanese and U.S. automobile manufacturers, we develop measures of resources and capabilities and test for linkages with firm performance. The results ...
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作者：Naveh, E; Katz-Navon, T; Stern, Z
作者单位：Technion Israel Institute of Technology; Reichman University; Hebrew University of Jerusalem; Hadassah University Hospital
摘要：Recent reports on patient safety in healthcare point to the high frequency of treatment errors. This study suggests a new theory of safety climate and brings empirical evidence that helps explain the occurrence of treatment errors. Four safety climate dimensions have been identified. They include employee perceptions of the suitability of the organization's safety procedures for their daily work, employee perceptions of the frequency and the clarity of the safety information distributed by the...
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作者：Deltas, G; Engelbrecht-Wiggans, R
作者单位：University of Illinois System; University of Illinois Urbana-Champaign
摘要：This paper presents an equilibrium explanation for the persistence of naive bidding. Specifically, we consider a common value auction in which a naive bidder (who ignores the winner's curse) competes against a fully rational bidder. We show that the naive bidder earns higher equilibrium profits than the rational bidder when the signal distribution is symmetric and unimodal. We then consider a sequence of such auctions with randomly selected participants from a population of naive and rational ...
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作者：Viswanathan, S
作者单位：University System of Maryland; University of Maryland College Park
摘要：Them from traditional channels. The interaction between firms operating across these differentiated channels involves interesting competitive dynamics that cannot be captured by isolated models of electronic markets. This paper develops a stylized spatial differentiation model to examine the impact of differences in channel flexibility, network externalities, and switching costs on competition between online, traditional, and hybrid firms. A basic model highlighting the moderating influence of...
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作者：Andersen, K; Cornuéjols, G; Li, YJ
作者单位：Universite Catholique Louvain; Carnegie Mellon University; Aix-Marseille Universite; Purdue University System; Purdue University
摘要：Mixed-integer Gomory cuts have become an integral part of state-of-the-art software for solving mixed-integer linear programming problems. Therefore, improvements in the performance of these cutting planes can be of great practical value. In this paper, we present a simple and fast heuristic for improving the coefficients on the continuous variables in the mixed-integer Gomory cuts. This is motivated by the fact that in a mixed-integer Gomory cut, the coefficient of an integer variable lies be...
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作者：Van Alstyne, M; Brynjolfsson, E
作者单位：Boston University; Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT)
摘要：Information technology can link geographically separated people and help them locate interesting or useful resources. These attributes have the potential to bridge gaps and unite communities. Paradoxically, they also have the potential to fragment interaction and divide groups. Advances in technology can make it easier for people to spend more time on special interests and to screen out unwanted contact. Geographic boundaries can thus be supplanted by boundaries on other dimensions. This paper...
