This paper considers tests of the parameter on endogenous variables in an instrumental variables regression model. The focus is on determining tests that have some optimal power properties. We start by considering a model with normally distributed errors and known error covariance matrix. We...

The ongoing analysis of the effects of pension plan provisions on retirement is pursued in this paper. A primary objective of this paper is to test the validity of models previously developed and estimated with data from a Fortune 500 company, here using data from a second large company. The...

The option value model developed in an earlier paper is used to simulate the effect on retirement of changes in a firm's pension plan compared to the effect of changes in Social Security provisions. The provisions of the firm's pension plan have a much greater effect than Social Security...

The possibility of mean reversion in stock prices recently has been examined using statistics based on multi-year returns. Previous researchers have noted difficulties in drawing inferences about these statistics because of poor performance of the usual approximating asymptotic distributions. We...

Traditional least squares estimates of the responsiveness of gasoline consumption to changes in gasoline prices are biased toward zero, given the endogeneity of gasoline prices. A seemingly natural solution to this problem is to instrument for gasoline prices using gasoline taxes, but this...

Traditional least squares estimates of the responsiveness of gasoline consumption to changes in gasoline prices are biased toward zero, given the endogeneity of gasoline prices. A seemingly natural solution to this problem is to instrument for gasoline prices using gasoline taxes, but this...

Several policy makers and economists have proposed the adoption of a carbon tax in the United States. It is widely recognized that such a tax in practice must take the form of a tax on the consumption of energy products such as gasoline. Although a large existing literature examines the...

A direct consequence of imposing a ceiling on the price of a good for which secondary markets do not exist, is that, when there is excess demand, the good will not be allocated to the buyers who value it the most. The resulting allocative cost has been discussed in the literature as a...

A direct consequence of restricting the price of a good for which secondary markets do not exist is that, in the presence of excess demand, the good will not be allocated to the buyers who value it the most. We demonstrate the empirical importance of this allocative cost for the U.S. residential...