Schimmelpfennig, David; Thirtle, Colin; Zyl, Johan van; … - In: Agricultural Economics of Agricultural Economists 23 (2000) 1
This paper briefly presents the results of a total factor productivity (TFP) study of South African commercial … between R&D and TFP is analyzed and found to be only 9 years, with a pronounced negative skew, reflecting the adaptive focus … the lag between R&D and TFP. If this is assumed to be the correct lag, the ROR falls to 58%, a best estimate. The paper …