Agricultural productivity in 41 Sub-Saharan Africa (SSA) countries from 1960 to 1999 is examined by estimating a semi-nonparametric Fourier production frontier. Over the four decades the estimated rate of productivity change was 0.83% per year, although the average rate from 1985-99 was a strong...

This paper examines changes in agricultural productivity in18 developing countries over the period 1961-1985. We use the nonparametric, output- based Mamquist index to examine whether the results from such approach confirm results from other methods that have indicated declining agricultural...

This paper examines agricultural policies in 18 developing countries over the period 1961-1985. We measure productivity with both a nonparametric Malmquist index and a production function, confirming previous findings of declining agricultural productivity, but with sufficident inconsistencies...