This paper examines changes in agricultural productivity in 18 developing countries over the period 1961-1985. We use a nonparametric, output-based Malmquist index and a parametric variable coefficients Cobb-Douglas production function to examine, whether our estimates confirm results from other...

Theoretical studies indicate that the welfare of the developing countries might either be improved or damaged by the strengthening of their own intellectual property rights. Net gains through their agricultural sectors will be positive if the payoff from new innovations is sufficiently different...

This paper examines growth in the U.S. agricultural sector under the conditions hypothesized by endogenous growth theory. Public capital and R&D are explicitly considered to capture the effects of public inputs in a model based on dynamic duality theory. Results support some necessary conditions...

Replaced with revised version of paper 08/24/09.

Replaced with revised version of paper 08/24/09.