有效证券市场及其启示

随着我国经济体制改革的深入进行,证券买卖方兴未艾,越来越多的人想知道有关证券方面的知识,了解证券市场的运行机制,从而进行证券买卖活动。     

频率不受运放参数影响的文氏桥振荡器

本文介绍一组（12个）新的正弦振荡器，这组振荡器使用两个运算放大器，其振荡频率不受单极点有源元件增益带宽之积的影响。这种特性是由本文所介绍的电路结构取得的，即不需要调节。     

Corporate social responsibility and organizational effectiveness: A multivariate approach

In this paper, three major themes in research on corporate social responsibility (CSR) are identified. Of particular interest, however, is the potential link between CSR and organizational effectiveness (OE). Data collected from 410 college graduate and undergraduate students were used to examine this relationship. Using factor analysis, eight dimensions of CSR and three components of OE were extracted. Canonical analysis was then performed. The result supports the proposition that specific CSR practices affect select OE outcomes. In addition, the method employed here provides a parsimonious approach to give priority to social claims.Shaker A. Zahra, Ph.D., is Associate Professor of Strategic Management, George Mason University, Fairfax, VA 22030, U.S.A. His research centers on the role of board of directors in the strategic process, determinants of technological innovation in large corporations, and ethical issues associated with strategic choices. His research has received several awards.Michael S. LaTour, Ph.D., is Assistant Professor of Marketing, College of Business, Old Dominion University, Norfolk, Virginia 23508, USA. His research centers on the role of arousal in consumer behavior and ethical issues arising in this context.     

A new clustering methodology for the analysis of sorted or categorized stimuli

This paper introduces a new stochastic clustering methodology devised for the analysis of categorized or sorted data. The methodology reveals consumers' common category knowledge as well as individual differences in using this knowledge for classifying brands in a designated product class. A small study involving the categorization of 28 brands of U.S. automobiles is presented where the results of the proposed methodology are compared with those obtained from KMEANS clustering. Finally, directions for future research are discussed. Wayne S. DeSarbo is the S. S. Kresge Distinguished Professor of Marketing and Statistics, and Michael D. Johnson is Associate Professor of Marketing, both at the University of Michigan's School of Business Administration. Kamel Jedidi is Assistant Professor of Marketing at Columbia University's Graduate School of Business. The authors gratefully acknowledge DuPont Incorporated for providing financial support for this research.     

Information processing and innovative choice

In this paper we examine how the information processing of subjects who make an innovative choice (innovators) differs from that of subjects who make a noninnovative choice (noninnovators). The task involves selection of an alternative within a range of prerated product category innovativeness. We propose that subjects who seek 1) impersonal/uncontrollable sources, 2) higher levels of information, 3) more detailed (versus summary) data, and 4) noncomparative (versus comparative) data are more likely to make innovative choices. The research method is a computerized process tracing experiment utilizing Search Monitor (Brucks 1988).The authors wish to express their gratitude to Merrie Brucks for the use of and help with Search Monitor and to Eric Johnson, Dave Schmittlein, and Mita Sujan for helpful comments on an earlier version of this paper.     

Modeling how institutional investors allocate business to brokers

A model of how institutional investors evaluate and allocate business to brokers shows a complex pattern of influences. The broker's ability to execute transactions at appropriate prices is basic, but this combines with research and sales force performance to build a relationship that affects over-time allocation of business. It is difficult to separate relationship and selling performance, and relationship is subject to considerable decay. Research ability has a weak effect on business allocated on the basis of trading, while trading ability does affect business allocated on the basis of research.     

Justice in preferential hiring

This paper reports studies designed to examine perceptions of preferential selection. Subjects evaluated the fairness of hypothetical cases of selection decisions based on either candidate sex or ethnic origin. A within-subjects design and a between-subjects design yielded convergent results showing that (1) preferential selection was perceived as unfair, irrespective of respondent sex or the basis for the preferential treatment (i.e., candidate sex or ethnic origin), (2) the level of perceived injustice was directly related to the discrepancy in merits between the successful minority candidate and the more qualified yet unsuccessful majority candidate, and (3) the provision of either an ethical or legislative justification for the selection decisions further exacerbated feelings of injustice. Possible interpretations for the findings and practical implications of the study were then discussed. M. S. Singer is a senior lecturer in psychology at Canterbury University. Her published work includes papers in Personnel Psychology, Journal of Applied Psychology, Current Psychology: Research and Reviews,and Applied Psychology: An International Review. A. E. Singer is a senior lecturer in strategic management and business ethics at Canterbury University. He has published various papers in academic journals including Omega: The International Journal of Management Science, Decision Sciences, International Journal of Forecasting, International Journal of Research in Marketing,and Journal of Business Ethics.