Estimation of Walnut Production Function in Selected Province of Iran

Abstract

Production function is one that determines the output of a firm, an industry, or an entire economy for all combinations of inputs. This paper engaged Cob-Douglas production functions to test the factors effective on walnut (Juglans regia) production in Hamadan, Fars and Semnan provinces. The cross-sectional data collected from 383 Walnut Growers by questionnaire with interview schedule. The variables of this study were Zulonfloo poison, labor, machinery, Iron fertilization, water and acreage. The Cob-Douglas production function selected as the most appropriate model to analyze the walnut production function. Econometric analysis results revealed that walnut growers have used the factors of production in the second area of production. The Findings also showed the elasticity of factors production such as Zulonfloo poison, labor, machinery, Iron fertilization, water. The result showed that there is increase of Returns to scale in walnut orchards of Hamadan, Fars and Semnan provinces.

DOI: 10.5901/mjss.2016.v7n3s3p312