Sun, Ling; Ball, V. Eldon; Fulginiti, Lilyan E.; … - Agricultural and Applied Economics Association - AAEA - 2009
In this paper we revisit the issue on the impact of public R&D expenditure on US agricultural productivity growth. We estimate a dual cost function using a state-by-year panel data set. We construct the potential R&D “spillins” based on both geographical location and production mix. We also...