An error correction model (ECM) of induced innovation, based on the two-stage CES production function allows direct tests of the inducement hypothesis, which are applied to U.S. data for 1880-1990. The time series properties of the variables include a structural break in 1920, cointegration is...

Drawing on international evidence, the authors discuss the sources of economies of scale. Using representative farm-level survey data for South Africa's six major grain producing areas and one irrigation area for the period 1975-90, they: describe the the structure of South African agriculture,...

The authors investigate whether factor prices matter in agricultural production and in the selection of production technology. Each stage of the analysis corroborates the inducement hypothesis, which implies that factor prices do matter in agricultural production and in the selection of...

This chapter extends the work of the previous chapters by fitting a long run profit function to investigate the sources of output growth in South African agriculture. In the long run, all the conventional inputs are treated as variable, but the technology-related variables are fixed because they...

This paper briefly presents the results of a total factor productivity (TFP) study of South African commercial agriculture, for 1947-1997, and illustrates some potential pitfalls in rate of return to research (ROR) calculations. The lag between R&D and TFP is analyzed and found to be only 9...