We develop and estimate the steady-state growth equation of an augmented version of Romer's model of endogenous technical change that allows for population growth, human capital accumulation, diminishing returns to R&D, and technology diffusion. Estimates from international cross-section data...

We reassess Mankiw, Romer and Weil's [mrw] version of the Solow model using, as did mrw, cross-sectional data to estimate the steady-state equation governing income per capita levels. The model fails in two critical areas. First, plausible factor shares obtained by mrw are not robust to the...

We examine the evolving structure of the U.S. hospital industry since 1970, focusing on how ownership form influences entry and exit behavior. We develop theoretical predictions based on the model of Lakdawalla and Philipson, in which for-profit and not-for-profit hospitals differ regarding...