Previous empirical examinations of the Grossman-Helpman (1994) model raise a puzzle. They find that the weight that the government places on a dollar of welfare loss greatly outweighs a dollar of money contributions. That is, the government is really a welfare maximizer. But this view is at odds...

Part of the rationale for NAFTA was that it would increase trade and FDI flows, creating jobs and reducing migration to the US. Since poor data on illegal flows to the US makes direct measurement difficult, this paper instead evaluates the mechanism behind these predictions using data on...

This paper employs a new global panel data set on innovation related variables to examine patterns of R&D investment across the development process. We find that R&D effort measured as a share of GDP rises with development at an increasing rate, but that several countries have experienced...