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91.
A common assumption in inventory analysis is that replenishment orders arrive in the same sequence in which they were placed. In practice, however, a variety of factors may cause orders to arrive out of sequence, a phenomenon known as order crossover. This article analyzes a periodic‐review inventory system for a single item with discrete variable demand and discrete variable and long lead‐times (relative to the review period). Under such a scenario, multiple orders are simultaneously outstanding, and orders may arrive in a different sequence than placed. If such order crossover occurs, traditional inventory analysis overstates expected shortages and standard inventory control policies are no longer optimal. This article discusses why orders may cross over in practice and investigates the implications of order crossover to inventory management policies. We investigate the cost performance of optimal policies under order crossover and also suggest approximate policies which are easier to compute and implement. Both the optimal and approximate policies take advantage of detailed real‐time information about the status of pending orders and goods in transit, and hence in a majority of cases perform better than commonly used policies which do not incorporate such information. 相似文献
92.
Kira Kristal Reed Michael Lubatkin Narasimhan Srinivasan 《Journal of Management Studies》2006,43(4):867-893
abstract This study examines one specific aspect of the resource-based view, intellectual capital, and its three knowledge components – human, organizational, and social capital. We hypothesize that the impact of each component on financial performance is contingent upon the values of the other components, and that these leveraging effects are themselves contingent upon the industry conditions in which a business operates. Our hypotheses are supported using line-of-business survey and FDIC data (within-industry/within-geographic region) from two non-competing resource niches of the banking industry (personal and commercial banking). 相似文献
93.
Byungwan Koh B. P. S. Murthi Srinivasan Raghunathan 《Journal of Organizational Computing & Electronic Commerce》2013,23(4):366-387
Traditionally, music has been sold to consumers by recording several individual songs/tracks in physical media such as CDs and cassettes. Sales of such physical music have been declining for the past several years. Many academic studies have attributed the decline of physical music sales to online music piracy, yet some other studies have not found evidence to support a negative relationship between online music piracy and physical music sales. Interestingly and importantly, we have observed that while many of the studies that found the negative relationship between online music piracy and physical music sales used data before 2003, other studies that do not find similar results have used post-2003 data. In fact, there was a significant structural change in the music market in 2003. Legal (iTunes-like) online channels for digital music that allow consumers to buy individual tracks became available during that year. This article complements the existing literature by analyzing the impact of online music piracy and physical music sales in the presence of iTunes-like legal channels for digital music using bivariate Granger testing. Our results show that the availability of legal channels for digital music has weakened the negative effect of online music piracy on physical music sales. Moreover, in the presence of legal channels for music distribution, digital music, not online music piracy, substitutes for physical music. 相似文献
94.
95.
A recent paper by Ruge-Murcia (2004) on asymmetric central bank objectives provides a new perspective on the policy roots of inflation in developed economies. More precisely, the paper demonstrates that if the distribution of the supply shocks is normal, then the reduced-form solution for inflation implies a positive (or negative) relation between average inflation and the variance of shocks. We argue that the evidence offered in support of this hypothesis suffers from lack of identification because Phillips curve nonlinearity combined with quadratic central bank preferences yield the same reduced-form solution for inflation. If so, estimating reduced form for inflation will not be able to discriminate between these models. Yet they have quite different implications for policy. Other, structural, evidence is needed. 相似文献
96.
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98.
T. N. Srinivasan 《The World Economy》2007,30(7):1033-1068
Any rule‐based system has to include a mechanism for the enforcement of its rules and a means for settlement of disputes about alleged violation of rules. The General Agreement on Tariffs and Trade (GATT), concluded in 1947, and its successor the World Trade Organisation (WTO) that subsumed it in 1995, embody rules governing the global trading system as specified in various agreements that their members have entered into over time. Naturally, both had a dispute settlement mechanism (DSM). It was a primarily political one in the GATT and was transformed into a largely legalistic one in the multilateral agreement that established the WTO. This paper reviews the history and evaluation of the two DSMs and examines their efficiency based on appropriate criteria. It views them from three alternative and overlapping perspectives: political‐diplomatic, legal‐economic and social. It concludes with a discussion of the unresolved problems in the operation of the WTO's DSM and the prospects of resolving them in the ongoing Doha Round of multilateral trade negotiations. 相似文献
99.
Construct validities are assessed for three simple-to-compute, unweighted, SIC-based continuous diversification measures and a recently proposed two-dimensional, SIC-based categorical diversification measure. Two of the three continuous measures are found to correspond strongly to Rumelt's categorical measures, suggesting that these two objective and easy-to-calculate measures are better suited for large sample, strategy research than has previously been assumed. No support is found for the two-dimensional measure. 相似文献
100.
In the just-in-time (JIT) philosophy, purchasing strategies advocate the use of fewer sources of supply to enable a firm to improve the quality of its products. However, there is paucity of empirical evidence in support of the theory. We develop a model by integrating concepts from manufacturing, marketing, and business strategy to better understand the links between operating decisions of the firm, supplier availability, and product quality. We empirically test the hypotheses using cross-sectional PIMS data. Our analysis shows that operating decisions and environmental factors such as wider product lines, lower levels of competition, and greater frequency of product changes increase the likelihood of a firms' reduction of supplier base, which in turn raises quality levels. 相似文献