Evaluating the Efficiency and Productivity of Grapevine Gardens in Sistan Region

The purpose of this research is to evaluate the efficiency of grape harvesters in Sistan region using non-parametric methods. Measuring the efficiency of grapevine and comparing their performance play an important role in improving their level of efficiency and productivity and provide support for planning the exploitation of this product in Sistan. One of the common methods of measuring efficiency is data envelopment analysis. This method, despite its advantages, is not suiteble to measuring efficiency when the number of decision-making units is few. Therefore, using the window envelopment analysis approach, the number of decision-maker units is increased and the efficiency of the users can be well measured. In this research, using windouw data analysis in the period of 2011-2016, the efficiency of Sistan grapevine will be determined. According to the results obtained regarding the efficient or inefficient exploiters, Zabol and Hirmand and Zahak have a yield of less than one that indicates inefficiency in grape harvesting. Also, according to Malmquest index, the average of total productivity changes for Zahak city is 1.05 during the mentioned period. One of the most effective factors in total productivity changes has been technological changes. It is suggested that new technology (gardener integration and new irrigation) be used in agriculture to increase the efficiency and productivity of grape product in the region.