Grabowski, Richard - In: The Singapore economic review : journal of the Economic … 33 (1988) 2, pp. 40-48
R. W. Shepard first introduced the homothetic function in which returns to scale in the analysis of agriculture can vary with output but not with the input mix. W. Eichhorn introduced the class of ray-homogeneous functions, in which returns to scale can vary with the input mix but not with...