In this paper we develop a new approach to measuring the gains from economic integration based on a generalization of the Ricardian model in which heterogeneous factors of production are allocated to multiple sectors in multiple local markets based on comparative advantage. We implement this...

Recent trends suggest the world economy may be tending towards an equilibrium with two distinct trading blocs, each internally integrated, but with significant isolation between the blocs. This paper uses a quantitative theory to explore how far this bifurcation would need to go to pose a threat...

Groundwater is a key resource for agricultural production globally. Increasingly rapid aquifer drawdowns--as well as the policies intended to increase their sustainability--increase costs to agricultural producers, with unknown consequences. This paper provides the first large-scale empirical...

This article examines the involvement of agricultural and life science faculty at U.S. land grant universities in two types of university-industry relations: academic engagement (sponsored research, industry collaborations, and presentations), academic commercialization (patenting, licensing,...

Recent models of firm investment decisions stressing informational imperfections in capital markets provide a foundation for interpreting evidence that movements in internal finance can predict investment opportunities. While such evidence is suggestive, it is often open to other...