Books and Papers

"Two Hidden Sources of Productivity Growth in American Agriculture, 1860-1930" (with William N. Parker) Agricultural History 56, October 1982, pp. 648-62

Initial paragraph

Sustained productivity growth in modern agriculture depends largely upon two complex social processes of learning. In genetic and biochem- ical technology, scientists must learn how to adjust plant varieties and animal breeds to the various and changing conditions of the natural environment....

"Modeling Technological Change in Energy Demand Forecasting: A Generalized Approach" (with John A. "Skip" Laitner) Technological Forecasting and Social Change 55, 1997

Abstract

Conventional economic modeling of energy demand has characterized technological choice as an investment decision driven primarily by the relationship between capital costs and operating costs. Yet the implementation of this approach has tended to yield unrealistically high estimates of the implicit discount rate governing...

"Accumulation and Discrimination in the Postbellum South" Explorations in Economic History 16, 1979

Abstract

Economic inequality between blacks and whites in the postbellum South can be attributed to two factors: racial discrimination and the absence of any redistribution of tangible wealth to accompany emancipation. This paper shows that the freedmen's initial lack of property was the most important cause of race-related income differences. The initial wealth gap between...