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831.
832.
This paper examines the impact of vocational education on productivity in the United States. By using a cross-correlation test for directional causality, it is shown that vocational education has led to improvements in human capital that in turn increase productivity as measured by real private domestic product per worker hour in nonfarm business. The reverse is not true: that is, changes in productivity do not have a statistically identifiable impact on vocational education. Moreover, the time it takes for significant cross-correlations to appear suggests that the total effect of any vocational educational change takes at least 10 to 20 years to exhaust itself.When the manufacturing sector is studied separately, such positive results are not obtained. Only two out of seven vocational education measures appear to have a significant effect on productivity. For these two measures, the time for an identifiable impact to occur is also fairly long. 相似文献
833.
Professor Wilfried Pauwels 《Journal of Economics》1993,57(3):261-277
Aggregate consumer and producer surplus is a special type of social welfare function. In this paper, we investigate how individual welfare weights and how the social marginal utility of an increase in an individual's income behave if one uses aggregate surplus as a measure of social welfare. Our conclusion is that aggregate surplus is an ethically unacceptable measure of social welfare.I am grateful to B. De Borger and to an anonymous referee for helpful comments and suggestions on an earlier version of this paper. Of course, all remaining errors are mine. 相似文献
834.
Professor Akio Matsumoto 《Journal of Economics》1993,57(3):233-259
We have constructed a simple discrete-time macroeconomic model founded on individuals' stochastic optimizing behavior. Actual transactions are carried out in a sequence of disequilibrium markets in which the level of aggregate trade is the lesser of aggregate demand and supply, and in which the individual faces all-or-nothing basis stochastic rationing. In such environments, the actual transaction an individual obtains is generally different from the expectation he forms. This difference is a source of macro-dynamics. The paper demonstrates that, through the interactions of individuals in different markets, the expectation adjustment process is inherently nonlinear and generates complex dynamics involving chaos.I am indebted to Professors Richard Day, James Dulgeroff, Hajime Hori, Osamu Kamoike, Masahiro Okuno-Fujiwara, Makoto Towada, Makoto Yano, and two referees of this Journal for helpful comments and many constructive suggestions to improve the quality of this paper substantially. I am grateful to financial support from Tohyo Trust Bank. All remaining errors are my responsibility. 相似文献
835.
For developing, technology-receiving countries, direct foreign investment is always better than licensing in the short run with sectoral immobility of capital. In the long run with perfect mobility of capital between sectors, the welfare rankings of the two scenarios are dependent upon the amount of domestic capital. The likely case is that the developing country would have a smaller amount of domestic capital than foreign investors, and hence licensing could yield higher national welfare.The authors are indebted to many useful comments of two anonymous referees. The authors, however, are solely responsible for any remaining shortcomings. 相似文献
836.
This paper examines a market in which a continuum of principals and agents interact in a game. Principals offer contracts while agents decide on sets of acceptable contracts. A mechanism from a class satisfying efficiency, unbiasedness, and continuity properties then matches principals and agents. With risk neutral agents, when the contribution of principals and agents to the total gains from trade in a pairing are additively separable, the equilibria of the game coincide with the competitive equilibria for the market. In particular, all contracts used in Nash equilibrium induce first-best effort levels. Both principals and agents have exogenous opportunities outside this market. In equilibrium, agents have endogenously determined outside opportunities available from employment by another principal, and this may be the binding participation constraint in a principal-agent pairing. The results are extended to special non-separable cases and to the case of identical risk averse agents.We are grateful to seminar participants at Indiana University, the University of Kentucky, and Vanderbilt University for comments on earlier versions of this work. Referees' comments led us to generalize the model and to more clearly specify the point of the paper. 相似文献
837.
Assistant Professor of Finance Yusif Simaan Professor of Finance Cheng-Few Lee 《Review of Quantitative Finance and Accounting》1992,2(4):391-408
We utilize the joint elliptical distribution to model a multi-factor return generating process and derive an equilibrium multi-beta capital asset pricing model (CAPM) in which the market portfolio and a set of nonelliptical factors are sufficient to price all financial assets. Most important, it is shown that the market portfolio, while generally nonelliptical, can proxy all elliptical factors and hence: including elliptical factors in addition to the market portfolio in the pricing equation contribute nothing to asset pricing. While the representative investor prices the exposure of aggregate wealth to various nonelliptical systematic risk factors, individual securities are priced in accordance to their contributions to different aspects of the risk of aggregate wealth. The present model collapses to the Sharpe-Lintner CAPM when either the market investor is neutral to nonelliptical risk factors or when all risk factors follow a joint spherical distribution. When residuals cancel out of the market portfolio, the present model collapses to Conner (1984) pricing model. 相似文献