Efficiency,technological change and output growth in Greek olive growing farms: a Box-Cox approach

This paper captures the relative contributions of input growth, technological change and technical efficiency to olive oil production growth for a panel data set of 125 Greek olive-growing farms for the period 1987 to 1993. A flexible generalized quadratic Box-Cox functional form is proposed to represent the underlying production technology. This functional specification copes with the problem of zero inputs and nests all widely used production frontiers. Empirical results show that the observed production growth is mainly due to increased input use since it was not accompanied by rapid introduction of technological innovations and improvements in efficiency levels.