رشد بهره‌وري در توليد گندم ايران‌: يك مطالعه تجربي‌

Productivity Growth in Wheat Production of Iran: An Empirical Study

Increasing population and limitation production factors make necessary to raise factor productivity progressively. In this study, substitution between production factors and total factor productivity growth during the 1360-1384 in wheat production was estimated by Allen elasticity of substitution and a Tornqvist index, respectively. Results showed that, output (wheat) growth was 0.79 during the 1360-1372 period and had fallen to 0.41 in the 1373-1384. Moreover, productivity growth was negative over the whole period and indicated that, input growth has been more than output growth. According to finds, it is essential to move towards suitable combination of input use instead of injection more input in wheat production.