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作者：TURNER, AL; WEIGEL, EJ
摘要：This paper examines the daily return variability of the S&P 500 and the Dow Jones indices over the 1928-1989 period. We use the traditional close-to-close standard deviation of returns, two alternative estimators incorporating the daily high and low of the index, and a robust estimator to measure the volatility of stock index returns. The 1980s were the third most volatile decade behind the 1920s and 30s. To a large extent, this was caused by the anomalous behavior of the fourth quarter of 198...
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作者：STORER, RH; WU, SD; VACCARI, R
摘要：In this paper search heuristics are developed for generic sequencing problems with emphasis on job shop scheduling. The proposed methods integrate problem specific heuristics common to Operations Research and local search approaches from Artificial Intelligence in order to obtain desirable properties from both. The applicability of local search to a wide range of problems, and the incorporation of problem-specific information are both properties of the proposed algorithms. Two methods are prop...
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作者：LOVEJOY, WS
摘要：This paper considers single-item inventory systems with immediate delivery and no economies of scale. Bounds are provided on the value loss relative to optimal cost for restricting attention to the class of inventory stocking policies that behave myopically up to a specified stopping time. The stopping time may be random, and may depend on demand histories as well as information exogenous to the firm. The bounds are robust to the nature of the demand process faced after the stopping time, so a...
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作者：AUSTER, ER
摘要：Although economic activity between the U.S. and Japan has skyrocketed in the last decade, there are few large sample, cross-industry studies analyzing multiple forms of investment by the Japanese in the U.S. This study analyzes the key characteristics of each stage of industry evolution and the costs and benefits of each form of resource investment to predict the patterns of technological linkages, joint ventures, and direct investment of Japanese companies in the U.S. The results find support...
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作者：TAM, KY; KIANG, MY
作者单位：Arizona State University; Arizona State University-Tempe
摘要：This Paper introduces a neural-net approach to perform discriminant analysis in business research. A neural net represents a nonlinear discriminant function as a pattern of connections between its processing units. Using bank default data, the neural-net approach is compared with linear classifier, logistic regression, kNN, and ID3. Empirical results show that neural nets is a promising method of evaluating bank conditions in terms of predictive accuracy, adaptability, and robustness. Limitati...
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作者：MULVEY, JM; VLADIMIROU, H
作者单位：International Business Machines (IBM); IBM USA
摘要：Several financial planning problems are posed as dynamic generalized network models with stochastic parameters. Examples include: asset allocation for portfolio selection, international cash management, and programmed-trading arbitrage. Despite the large size of the resulting stochastic programs, the network structure can be exploited within the solution strategy giving rise to efficient implementations. Empirical results are presented indicating the benefits of the stochastic network approach...
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作者：HENDERSON, JC; LEE, S
摘要：The control relationship between project managers and team members is a central aspect of the working of any Information System (I/S) design team. This paper combines research on managerial control and team-member control in order to explore a range of control behaviors that can affect the performance of an I/S design team. Measures are developed and validated for managerial control and team-member control from both an outcome and a process perspective. Results from a study of 41 actual I/S de...
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作者：ERICKSON, G; JACOBSON, R
摘要：We explore the extent to which R&D and advertising expenditures generate a comparative advantage that allows firms to earn supranormal profits. After controlling for unobserved firm-specific factors and the feedback between discretionary expenditures and profitability, our results suggest substantially lower accounting and stock market returns to R&D and advertising than indicated in previous research. Isolating mechanisms, which prevent imitation, do not appear sufficient for either R&D or ad...
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作者：DYER, JS; FISHBURN, PC; STEUER, RE; WALLENIUS, J; ZIONTS, S
作者单位：University of Texas System; University of Texas Austin; AT&T; Nokia Corporation; Nokia Bell Labs; University System of Georgia; University of Georgia; Aalto University; State University of New York (SUNY) System; University at Buffalo, SUNY
摘要：Management science and decision science have grown exponentially since midcentury. Two closely-related fields central to this growth are multiple criteria decision making (MCDM) and multiattribute utility theory (MAUT). This paper comments on the history of MCDM and MAUT and discusses topics we believe are important in their continued development and usefulness to management science over the next decade. Our aim is to identify exciting directions and promising areas for future research.
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作者：SARGENT, RG; SOM, TK
作者单位：Syracuse University
摘要：This paper presents an examination of certain issues in Frequency Domain Experimentation (FDE) for discrete event simulation. Experimental results are presented to demonstrate that (i) conclusions drawn from FDE are dependent on the oscillation frequency and unless frequencies are chosen carefully, misleading results can be obtained; (ii) interpretation of results from frequency domain experiments are fundamentally different from the interpretation of results from regression analysis-specifica...
