Nieuwoudt, W. Lieb; Nieuwoudt, T.W. - In: Agrekon 43 (2004) 3
The rate of return (ROR) on R&D in the South African Sugar Industry is estimated from a Ridge Regression of a production function of time series data for the period 1925 to 2001. The Industry has kept records on R&D expenditure, yields, rainfall and related factors over a 75-year period. Sugar...