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This article discusses the limitations of present methods of analyzing the coverage of advertising schedules and presents a technique for obtaining additional information from traditional measures of schedule coverage. This technique models entire patters of audience exposure to commercials by means of a compound Bernoulli distribution that can be estimated from reach and frequency data. Knowledge of the complete pattern of audience exposure to advertising schedules assists the media analyst in selecting optimally effective advertising schedules and consequently enhances the probability of conducting a successful advertising campaign.  相似文献   
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Using a difference-in-differences estimation framework and state-level data, we investigate the potential role of HIV/AIDS in contributing to declining abortion utilization in the United States. Our results suggest that the perceived risk of HIV contraction negatively affected unwanted pregnancies. Specifically, a 10% increase in HIV incidence is associated with 0.34–1.1% fewer abortions per live births, an effect that can account for at least one-tenth of the sharp decline in abortions observed from the early 1980s to mid-1990s.  相似文献   
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We discuss three well known plans that were offered in the twentieth century to provide an artificial replacement for gold and key currencies as international reserves: Keynes’ Bancor, the SDR and the Ecu(predecessor to the euro).The latter two of these reserve substitutes were institutionalized but neither replaced the dollar as the principal medium of international reserve.  相似文献   
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Modern charities are facing increasing pressures requiring them to use more effectively a range of marketing activities, and segmentation may be one such tool. The giving literature suggests that the demographic factors of gender and age might serve as appropriate segmentation criteria and this paper examines whether motivations of existing donors vary by age or gender. The results suggest that there may be limited benefits in segmenting existing donors and that charities may be able to use similar promotional strategies for all existing donors. Copyright © 2002 Henry Stewart Publications  相似文献   
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The way in which ethical standards are neglected or applied is a function of individual character. The best guarantee of ethical leadership, therefore, lies in the identification of those already predisposed to live according to high moral standards. The ascetic construct is offered as a type of personality with such a predisposition. The ascetic is self-controlled, purposeful, and mindful with regard to consequences. The character traits of the ascetic leader are predicted to increase ethical awareness and ethical accountability within his organization or hers. This will increase the probability of the organization's economic success because it will reduce uncertainty on the part of customers and investors. A better understanding of the ascetic personality may be helpful in identifying those with the potential for becoming highly ethical leaders.Harold Jones is a graduate of the University of Nebraska at Omaha and Garrett Theological Seminary. After eight years in the ministry, he worked for twelve years as a stockbroker and as a branch office manager for an affiliate of a New York Stock Exchange member firm. In 1992, he retired from business to begin working on his Ph.D.  相似文献   
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