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131.
Cash settlement of derivative contracts makes them susceptible to manipulation by traders who expect to close large positions upon final settlement. Cash settlement also increases underlying volatility when hedgers unwind their hedges if they have no incentives to control their trading costs. Limits on the positions that traders can carry into final settlement can be used to mitigate associated economic inefficiencies when surveillance is insufficient. This article develops a model that regulators can use to set these limits that is based upon microstructure theory. The empirical findings indicate that existing position limits are largely inconsistent with those suggested by the model. © 2005 Wiley Periodicals, Inc. Jrl Fut Mark 25:945–965, 2005  相似文献   
132.
A Varying Parameters Approach to Constructing House Price Indexes   总被引:4,自引:0,他引:4  
Conventional housing price index models assume interperiodparameter stability and typically employ either repeat sales or hedonic methodologies. This paper introduces a method of index construction that combines multiple sales observations with single sale transactions while permitting characteristics prices from hedonic regressions to vary over time. A test for interperiod parameter stability is provided. Each period's data are arranged by location and repeat sales are matched by rows. This construction allows greater use of sample information and acknowledges the unique contribution of repeat sales to the estimation process. It also produces intertemporal error correlations that can be beneficially exploited by the seemingly unrelated regressions (SUH) technique. The paper also demonstrates a significance test for error correlation and discusses the treatment of unequal numbers of observations among index periods.  相似文献   
133.
Customer discrimination may result in racial differences in the marginal revenue products generated by workers. College basketball data allow for direct comparisons of the racial differences in the marginal revenues generated by players. This article compares the revenue generating potential of the top black and white college basketball players. A highly skilled white college player generates over $100,000 in per game revenues as compared to around $30,000 for a black player of equal talent, providing a strong incentive for colleges to discriminate against recruiting black student-athletes.  相似文献   
134.
135.
This study explores the impact of environmental turbulence on relationships between personal and organizational characteristics, personal values, ethical perceptions, and behavioral intentions. A causal model is tested using data obtained from a national sample of marketing research professionals in South Africa. The findings suggest turbulent conditions lead professionals to report stronger values and ethical norms, but less ethical behavioral intentions. Implications are drawn for organizations confronting growing turbulence in their external environments. A number of suggestions are made for ongoing research. Michael H. Morris became the Fletcher Jones Chair in Entrepreneurship at the University of the Pacific, Stockton, CA in 1993. He received his Ph.D. in Marketing. He is the author of two books and over forty articles in academic journals, including the Journal of International Business Studies, the Journal of Business Research, the Journal of Management, and the Journal of the Academy of Marketing Science. Dr. Morris' principal research interests include entrepreneurial behavior, industrial marketing strategy, and pricing.Amy Seidel Marks has been a Senior Lecturer in Marketing at the GSB UCT since 1989. She holds a Ph.D. in Marketing from the Kellogg Graduate School of Management, and has worked in the areas of consumer behavior analysis and social marketing for 20 years. During her time in South Africa she has conducted numerous research projects in areas such as AIDS prevention, tobacco control and iodine deficiency, and has also served as a consultant to national projects in tuberculosis drug compliance, tobacco control and adult education.Jeff Allen received his doctorate from the University of Kentucky. He is currently an Assistant Professor of Marketing at the University of Central Florida, Orlando, Florida, Dr. Allen has published in various national and international academic journals on topics of social responsibility, marketing ethics, and health care marketing. Newman S. Perry, Jr. is Professor of Management, School of Business and Public Administration at the University of the Pacific in Stockton California. He has just completed Business, Government, and Society: Managing Competitiveness, Ethics, and Social Issues published by Prentice-Hall and previously coauthored a book on strategic management.  相似文献   
136.
The purpose of this study was to extend the previous research on ethics in retailing. Prior research of Dornoff and Tankersley (1985–1976), Gifford and Norris (1987), Norris and Gifford (1988), and Burns and Rayman (1989) examined the ethics orientation of retail sales persons, sales managers, and business school students. These studies found the college students less ethically-oriented than retail sales people and retail managers. The present study attempts to extend the research on ethics formation to a geographically and academically diverse sample, and to determine if retail management experience in the form of a professional practicum or internship, or entry level management training programs, such as experienced by recent graduates, are critical factors in the formation of business ethics. The sample consisted of thirty-three students majoring in Human Ecology with a concentration in Retail Merchandising and 51 recent graduates of the retail Merchandising program. The series of fourteen vignettes developed by Dornoff and Tankersley (1975–1976) was used. An acknowledged limitation of this study is the validity of the questionnaire developed by Dornoff and Tankersley due to the method of development and new laws concerning warranties and credit etc. which have occurred since 1976. The instrument was used, however, to maintain consistency with earlier studies for the purpose of comparison of groups. No significant differences were found in the students' perceptions of the fourteen actions presented in the vignettes, but the range of the responses in the post-internship tests increased in many cases. The alumni appeared to be slightly more ethical than the students but not as ethical as the managers surveyed in 1986 by Norris and Gifford. Indications are that the critical point of ethics formation may be at the mid-management level and that internships and management training programs have little effect on the ethical perceptions of participants. These findings are consistent with studies such as Gable and Topol (1988), and Jordan and Davis (1990) which showed high Machiavellian scores among young retailing executives, often buyers, as opposed to upper level retailing management. Scales with measure Machiavellianism, or manipulativeness, have been used as an alternative method of examining business ethics.Dr. DuPont is director of the Retail Merchandising Program at The University of Texas at Austin. She held numerous executing retailing positions with Federated Stores and Associated Dry Goods before entering academia. Dr. DuPont has established and supervised retail merchandising programs at two state universities. She has published work related to retail internships, human relations, and employer evaluation and motivation.Dr. Craig teaches in the Textiles and Apparel area at The University of Texas at Austin. She did a dissertation concerning entrepreneurship in the apparel industry.  相似文献   
137.
Aggregate agricultural commodity demand parameters are estimated, based on an application of the Deaton and Muellbauer Almost Ideal Demand System to a seventeen year Indonesian time-series data set of prices, expenditures and consumption availability. The statistical results are generally significant and correctly signed. The revealed demand relationships imply that the Indonesian food Staples are normal goods. Expenditure elasticities are higher for the higher value foodstuffs than for the lower value starchy staples. Furthermore, the demand for rice has become highly inelastic to both own and cross-price interventions. This implies that rice price interventions will require a high degree of fine-tuning in order to stabilise prices effectively, and that low urban rice prices cannot be regarded as an appropriate, or even second best policy instrument for improving nutritional status.

A high degree of Substitution between rice and secondary food crops, and amongst groups of secondary food crops, is identified. The significance of the cross-price elasticities for the secondary food crops suggests that single-market interventions will have non-trivial budget-mediated effects in other commodity markets. The management of a multi-commodity food policy requires that the spillover effects from commodity pricing policy must be taken into account in order to optimise the effects of price policy interventions.  相似文献   

138.
S. K. Bar-Lev  D. Plachky 《Metrika》1989,36(1):331-336
Summary Completeness of a family of probability distributions implies its bounded completeness but not conversely. An example of a family which is boundedly complete but not complete was presented by Lehmann and Scheffe [5]. This appears to be the only such example quoted in the statistical literature. The purpose of this note is to provide further examples of this type. It is shown that any given family of power series distributions can be used to construct a class containing infinitely many boundedly complete, but not complete, families. Furthermore, it is shown that the family of continuous distributions , is boundedly complete, but not complete, whereU denotes the uniform distribution on [a, b] and {P ϑ,ϑ ∈ IR}, is a translation family generated by a distributionP 0 with mean value zero, which is continuous with respect to the Lebesgue measure.  相似文献   
139.
The critical state of the hospital industry, as previously described, generates a difficult decision environment for the materiel manager and those in the purchasing function. The unique life- and death circumstances of hospitals impose a further onus on those who manage them. In the name of saving lives, they can find a convenient excuse to disregard all moral principles, forgetting the Socratic dictum "it is not enough that one lives, but that one lives well." Without the moral "right stuff," they can easily give in to the seductions of momentary gains and glory through ethical short-cuts. There is wisdom and consolation in the words that "nice guys may appear to finish last, but usually they're running in a different race." Studies have established a direct relationship between corporate excellence and ethical values. The reality of competition in the hospital industry dictates that the integration of ethics into the life of the organization should happen by design and not by accident. This is what is meant by strategy. If hospitals would strive for excellence to survive and grow, they should have a strategy with a mission statement that also embodies its moral values and moral agenda. Such an approach does not guarantee that an organization will become immune to moral contamination, but it does provide an antidote.  相似文献   
140.
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