An asymptotic approximation to the variances of Leamer's (1983) extreme bounds is given. It can be implemented using standard regression output. Copyright 1990 by MIT Press.

T. J. Rothenberg's (1984) Edgeworth test size correction for the linear model with a nonscalar covariance matrix is applied to the special case of AR(1) errors. Simulations show that the correction reduces the overrejection that is commonly encountered in this model, although substantial...

Effective tax and subsidy rates (ETRs and ESRs) on human capital investment via post-secondary education are estimated for Canada in the years 2000 and 2006. The flattening of the federal personal income tax structure in 2001 substantially reduced the tax disincentive for investment in human...