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61.
62.
Science and technology teachers create microcosms of the world beyond school as responses to perceived student needs. The focus of these microcosms for both science and technology classrooms was less of a concern for work preparation than for the development of social and intellectual habits. All of the teachers have strong views of the virtues of civil daily life and what it might take for their students to live the good life. The practical capability the teachers want their students to have transcends the instrumental to become moral.  相似文献   
63.
Economics is an inexact science, measurement of basic data is at best approximate, and most interesting relationships change relatively rapidly in developing countries. Key variables determining economic prospects are often impossible to include into models. Models and their mathematical algorithms however are deceptively precise, which often complicates the process of constructing and using economic projection models in developing countries.This paper will examine those macro models intended for operational policy purposes and how they are used. These models try to be analytically good and have sufficient plausibility to influence policy. Thus, a great deal of judgment is required in constructing, using, and interpreting projection models in developing countries: the “dead reckoning” element.  相似文献   
64.
我们正看到一种趋势初露端倪.这种趋势将很快成为下个10年里中国商业战略的"主流".更多的有战略头脑的中国公司开始在全世界展开直接的兼并业务,尤其是在美国.  相似文献   
65.
66.
In the nonparametric measurement of allocative efficiency, output prices are fixed. If prices are endogenous, the overall output in the market determines the allocative efficient point. We develop an alternative semi-nonparametric model that allows prices to be endogenously determined.  相似文献   
67.
This is a case study of the effect of subsidized housing on the value of adjacent non-subsidized housing. Four townhouse clusters in Fairfax County, Virginia, were selected for study because of the high degree of homogeneity between clusters. The clusters are all in the same community but vary in distance from subsidized housing. Sale prices were analyzed using a regression model which included distance from subsidized housing as an independent variable. Based on the results of the regression analysis, the authors conclude that the subsidized housing had a negative impact on the values of adjacent properties.  相似文献   
68.
We study auctions with resale based on Hafalir and Krishna's (2008) [6] model. As predicted, weak bidders bid more with resale than without, so that average auction prices tend to increase. When the equilibrium calls for weak types to bid higher than their values with resale they do, but not nearly as much as the theory predicts. In other treatments outcomes are much closer to the risk neutral Nash model's predictions. Bid distributions for weak and strong types are more similar with resale than without, in line with the theory.  相似文献   
69.
This article provides an empirical strategy guided by the data to estimate the effects of Economic Integration Agreements (EIAs) on trade flows and their transitional dynamics. The strategy uses Extreme Bounds Analysis (EBA) to guide the choice of lags and leads in the effects without researchers' discretion involved. We show that arbitrarily selected year intervals and starting year can result in non-robust estimates of transitional dynamics of the effects of EIAs on trade flows. The empirical strategy follows two steps: EBA first sifts lags and leads of EIAs robustly related to trade flows from candidates, then these are included in the gravity equation to estimate the effects of EIAs on trade. We find that various lags and leads are robustly and positively related to trade flows, and the lag and lead structure depends on the level of integration. Our results show that EIAs have a long-term effect of 63% on trade flows. Under the richer lag and lead structure, deep-integration agreements beyond the level of free trade agreements have a much higher impact on trade flows than free trade agreements do (132% vs 31%). The estimates of effects of EIAs obtained from EBA-based estimation have a smaller contemporaneous effect and larger phased-in effects compared to previous studies relying on the subjective choices of year intervals while similar results are observed with the decomposed EIAs.  相似文献   
70.
ABSTRACT

Unemployment durations vary across local authority districts in the UK. We explore the extent to which this variation is explained by differences in local labour demand as opposed to composition, business cycle and regional effects. We use seventeen waves of the British Household Panel Survey to identify the determinants of the duration of unemployment spells. Once we adjust for individual-level, business cycle and regional controls, we do not find evidence that living in a local authority district with relatively high unemployment is associated with longer spells of unemployment. This indicates that differences in labour demand operate at larger geographic scales, such as between large regions. Our findings have implications for the design of policies to help high unemployment districts.  相似文献   
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