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The indirect test implemented in this paper is based on the economics of discrimination which hypothesizes that differential treatment of borrowers, on the basis of age, race, sex, or property location, at any stage of the mortgage transaction, including prescreening, results in segregation of those getting less favorable treatment. Borrowers who perceive that they are receiving less favorable treatment based on age, race, sex, or property location would be segregated into the FHA-in-sured sector. Estimates of an FHA participation equation show no evidence of such segregation by sex, race, or center city property location. Younger borrowers do appear to be differentially concentrated in the FHA programs.  相似文献   
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Parental job loss from layoffs and business failures that occur when youth complete high school are found to be negatively related with enrollment at university and community college. Estimates using longitudinal data on Canadian youth and their parents are employed to identify both immediate and lagged effects of parental job loss on education enrollment. Parental job losses are also followed by significant falls in parental income. If the main pathway by which parental job loss affects youth education outcomes is via these income reductions, it that implies financial constraints on post-secondary education enrollment are important.  相似文献   
95.
In conducting a longitudinal examination of eight long-term complex decision processes in two Fortune 500 heavy manufacturing companies the authors developed a six-level framework of decision complexity. The levels range from: (1) instantaneous decision choices to (2) decision actions (3) decision events (4) mini-decision processes (5) decision processes and (6) decision theatres. They vary in time, numbers of participants, and in the integrative effort required to formulate and implement them. Thus, one problem with the word ‘decision’is that it is used to mean many different things in organizational settings. Each lower level of ‘decision’was found to combine with ‘decisions’of the same level and to be embedded within higher levels, resulting in a nested hierarchy of simultaneously occurring processes.  相似文献   
96.
The maritime industry provides an interesting case study of the design and implementation of drug-testing programs in the transportation industry during the 1980s. It is clear that such programs were designed and implemented less because of empirical evidence of safety problems than for political reasons. The results in the maritime industry are indicative of a program that is expensive to operate, intrusive with regard to employee privacy, and which will have little or no impact on safety. Focusing such programs on the issue of impairment rather than on the issue of drug usage per se is likely to improve the outcome of the programs. Although, despite common belief, there is little evidence that drug usage or the “drug problem” in U.S. society as a whole had gotten worse in the preceding years (Schonsheck, 1989, 250–251).  相似文献   
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Estimation of nitrogen response functions has a long history and yet there is still considerable uncertainty about how much nitrogen to apply to agricultural crops. Nitrogen recommendations are usually based on estimation of agronomic production functions that typically use data from designed experiments. Nitrogen experiments, for example, often use equally spaced levels of nitrogen. Past agronomic research is mostly supportive of plateau-type functional forms. The question addressed is if one is willing to accept a specific plateau-type functional form as the true model, what experimental design is the best to use for estimating the production function? The objective is to minimize the variance of the estimated expected profit maximizing level of input. Of particular interest is how well does the commonly used equally-spaced design perform in comparison to the optimal design. Mixed effects models for winter wheat (Triticum aestivium L.) yield are estimated for both Mitscherlich and linear plateau functions. With three design points, one should be high enough to be on the plateau and one should be at zero. The choice of the middle design point makes little difference over a wide range of values. The optimal middle design point is lower for the Mitscherlich functional form than it is for the plateau function. Equally spaced designs with more design points have a similar precision and thus the loss from using a nonoptimal experimental design is small.  相似文献   
99.
Data are presented to support the argument that motivation to manage is a major cause of managerial effectiveness, that it declined sharply in the college population during the activism of the 1960s and early 1970s, and that it is now severely lacking in the United States relative to many other countries. Thus America's competitiveness problems appear to be largely motivational in nature. Possible solutions are discussed, including recruiting and selecting for managerial motivation, increasing motivation to manage using training and development techniques, and changing organizational designs (telescoping the scalar chain, moving managerial tasks into non-managerial positions, resorting to professional forms, and expanding venture structures). © 1995 by John Wiley & Sons, Inc.  相似文献   
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