The 20th Century saw substantive shifts in the structure of agriculture and agricultural production in South Africa. Farm size grew, farm numbers eventually declined, and production increasingly emphasized higher-valued commodities, notably a range of horticultural crops. The real gross value of...

This is a substantially revised version of “Capital Use Intensity and Productivity Biases.” Andersen, Matt A.; Alston, Julian M.; Pardey, Philip G., St. Paul, MN: University of Minnesota, Department of Applied Economics; University of Minnesota, International Science and Technology Practice...

In general, reported rates of return to agricultural R&D are high, but questions have been raised about upward biases in the evidence. Among the reasons for this bias, insufficient attention to attribution aspects-matching of research benefits and costs-is a pervasive problem, the magnitude of...

Measures of productivity growth are often pro-cyclical. This study focuses on measurement errors in capital inputs, associated with unobserved variations in capital utilization rates, as an explanation for the existence of pro-cyclical patterns in measures of agricultural productivity. Recently...

Using newly developed time series on U.S. public sector agricultural research expenditures, two new deflators for agricultural research are constructed. These deflators differ from others currently used in the literature in that factor level price indices are weighted with time varying weights...

Replaced with revised version of paper 01/30/06.

Scholarly societies in economics (and many other professions) are clubs that provide members with a range of club goods, many of which have broader and economically significant spillover consequences for society at large. Yet surprisingly little is known about the historical evolution or current...

Replaced with revised version of paper 07/22/11. Former Title: Revisiting the Returns to U.S. Public Agricultural Research: New Measures, Models, Results, and Interpretation

Over the past century and more, research and development (R&D) has contributed to a transformation of the U.S. food and agricultural sectors. R&D has fueled productivity growth, enabling U.S. farmers to do more with less. It has helped U.S. farmers to remain competitive in increasingly...