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231.
W. Lee Hansen 《The Journal of economic education》2013,44(1):49-53
Professor Hansen's paper describes an effort to predict the success of graduate students in economics at The University of Wisconsin. Undergraduate grade point average, GRE scores, and the quality of the undergraduate schools were used as independent variables in a linear multiple regression model. Graduate grade point average was the dependent variable. The value of the independent variables as predictors is analyzed both jointly and in isolation. Among the important conclusions reached by Hansen is that heavy reliance upon a single predictor such as the undergraduate grade point average is unwise, that the GRE quantitative score takes on greater significance as the graduate student advances into the second year of his program, and that school quality must be taken into account. 相似文献
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This paper uses local-to-unity theory to evaluate the asymptotic mean-squared error (AMSE) and forecast expected squared error from least-squares estimation of an autoregressive model with a root close to unity. We investigate unconstrained estimation, estimation imposing the unit root constraint, pre-test estimation, model selection estimation, and model average estimation. We find that the asymptotic risk depends only on the local-to-unity parameter, facilitating simple graphical comparisons. Our results strongly caution against pre-testing. Strong evidence supports averaging based on Mallows weights. In particular, our Mallows averaging method has uniformly and substantially smaller risk than the conventional unconstrained estimator, and this holds for autoregressive roots far from unity. Our averaging estimator is a new approach to forecast combination. 相似文献
234.
Bruce E. Hansen 《The Journal of economic education》2017,48(3):137-145
What topics should be taught to undergraduate students in econometric time series? 相似文献
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Sufficient conditions are given for a tightening of the partial loss offset provision to reduce, respectively to stimulate, individual risk-taking. 相似文献
238.
L. P. Hansen 《Economics Letters》1978,1(4):315-319
A link is established between stochastic dominance and a different dominance relationship which we call pointwise dominance. This provides the basis for making several comparisons of expected values of non-decreasing functions of random variables. We discuss economic problems for which the application of stochastic dominance results depends on this link. 相似文献
239.
This paper argues that the gap between the theoretical utility and the practical utility of the resource‐based view (RBV) may be narrowed by operationalizing the theory more consistently with Penrose's original framework. The operationalization proposed here is a twofold approach. First, the RBV may be enhanced by the explicit recognition of Penrose's two classes of resources, namely, administrative resources and productive resources. This distinction suggests a focus on the administrative decisions of managers that lead to economic performance. Second, we argue that the RBV is a theory about extraordinary performers or outliers—not averages. Therefore, the statistical methods used in applying the theory must account for individual firm differences, and not be based on means, which statistically neutralize firm differences. We propose a novel Bayesian hierarchical methodology to examine the relationship between administrative decisions and economic performance over time. We develop and explain a measure of competitive advantage that goes beyond comparisons of economic performance. This Bayesian methodology allows us to make meaningful probability statements about specific, individual firms and the effects of the administrative decisions examined in this study. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
240.
This paper illustrates how to use instrumental variables procedures to estimate the parameters of a linear rational expectations model. These procedures are appropriate when disturbances are serially correlated and the instrumental variables are not exogenous. We compare our procedures to some alternative estimators that estimate free parameters from restrictions implied by the Euler equations. The procedures are applicable to a variety of linear rational expectations models, several examples of which we cite. 相似文献