This article revisits the effects of life expectancy (LE) on economic growth (IPC) reported in previous research. Maximum likelihhod (ML) estimates are obtained based on the monotonic nonlinear flexible Box-Cox power transformation regression model. This variance stabilizing model, unlike the a...

Brady, Assane and Karstensson in their earlier paper (1994) in this journal estimated a translog cost model of college and university health centres. They reported economies of scale estimates, as well as mean value elasticity estimates for factor demands and substitutions. In this comment, we:...

The Box-Cox transformation is suitable for stabilizing variance of the response variable and for inducing functional form flexibility in single-equation regression models. However, it becomes incapacitated if the data contain zero or negative values. This paper, using profitability data for US...