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This paper compares the results of two multisectoral models used to plan the dynamic consistency of sectoral investment. Solution of an optimizing model forecasts a frontier of the economy's future choice set. This frontier represents a ten year welfare gain only 2 or 3 percent greater than any investment program simulated by a dynamic Leontief system. The paper explains what efficient behavior accounts for the “better” performance of the optimizing model. Developing dynamic programming models is costly in terms of data, computational complexity, man-machine interaction, and solution interpretation. Therefore, it is recommended that the lessons derived by working with the dynamic LP be applied to improve the planner's control of the less expensive input/output simulation model.  相似文献   
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While we know a great deal about the disposition of felony arrests that reach the trial stage, we know little about the details of the dispositions reached without trial. And yet, this latter category forms as a rule over 90 percent, in New York City 98 percent, of all dispositions. Basing his analysis on a study done in the early 1970s, the author describes and presents data on the various stages in the process from arrest to final disposition through plea bargaining, trial, or dismissal of the case. For the first time, this usually opaque disposition pattern prior to trial emerges in the clarity of 23 graphs that illustrate the analysis. Of particular interest are some new insights into the mechanism of the plea bargaining process.  相似文献   
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According to the United Nations and the European Committee for the Prevention of Torture (CPT), torture and ill-treatment continues to be a problem during incommunicado detentions in Spain. CPT has visited Spain and published recommendations for improvements of preventive medical examinations. However, no scientific assessment of the impact of such recommendations exists. The objectives of this study were to assess the quality of documents from preventive medical examinations and the prevalence of alleged ill-treatment and compare findings with similar data from a previous study. Documents issued by state employed doctors describing medical examination of Basques held incommunicado during 2000-2005 were reviewed. The analysis covered allegations of ill-treatment and existence and quality of information essential for medical appraisal of allegations of ill-treatment. The material was collected by a non-governmental organisation. Of 425 documents concerning 118 persons, 85% had no formal structure and the format recommended by CPT was never used. None of 127 documents, concerning 70 persons with allegations of ill-treatment had an overall conclusion on the likelihood of ill-treatment. Twelve to 68% of necessary data were totally missing, and only 13-38% of existing information was sufficient. There was significant variation between the reporting of individual doctors, but in general the quality was unacceptable, although somewhat higher than in the previous study. The prevalence of allegations of ill-treatment was as high as previously. There were more reports of psychological ill-treatment and procedures of forced physical exhaustion, but fewer reports of beatings. In conclusion, there was no indication that the conditions of incommunicado detainees have improved substantially over the past 15 years and the standard of medical reporting was unacceptable. The Spanish authorities should give clear objectives and guidelines for medical examinations of detainees. An independent forensic specialist with the overall academic responsibility for preventive medical examinations of detainees should be employed to supervise state employed doctors. The present article shows the necessity for harmonization of medical practice in documentation of torture.  相似文献   
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