University of Tehran Iranian Journal of Agricultural Economics and Development Research 2008-4838 49 4 2018 12 22 Determining an Optimal Agronomic Cropping Pattern in Productive Units by analyzing the Regional and National Comparative Advantages Determining an Optimal Agronomic Cropping Pattern in Productive Units by analyzing the Regional and National Comparative Advantages 719 734 70344 10.22059/ijaedr.2018.264833.668647 FA Yaser Mohammadi Assistant Prof. of Agricultural Extension and Education, College of Agriculture, Bu-Ali Sina University, Hamadan, Iran and Center of Advance Research and Development of Elite Affairs, ETKA Organization, Tehran, Iran 0000-0002-8752-7619 Morteza Shalalvand Graduate MSc., Manager of Varamin Agricultural Complex, ETKA Organization, Tehran, Iran Kourosh Rezapour Graduate MSc.Production Deputy of Iranian Modern Farms Holding, ETKA Organization, Tehran, Iran Journal Article 2018 09 02 The main objective of this study was to determine an optimal cropping pattern in a productive unit located in Pishva County based on regional and national comparative advantage analysis. In order to achieve this goal, the physical indices of the comparative advantage of production including scale advantage, efficiency advantage, and aggregative advantage with the export advantage of both agronomic and greenhouse crops were calculated. The research was an empirical study based on field survey. Data were gathered through a questionnaire, interview with experts from Varamin Agricultural unit and statistical reports from the Ministry of Jihad-Iran Agriculture and FAO. The results of the study showed that the current cropping pattern of Varamin production unit has scale, efficiency and aggregative advantage and therefore the current farming pattern should be continued. These crops also had efficiency advantage in regional level according to Pishva County cropping pattern Analysis. The analysis of the comparative advantage of greenhouse products at the regional level showed that cucumber, colored pepper and tomatoes had comparative advantage in the province of Tehran. The revealed comparative advantage also showed that cucumbers, colored peppers and greenhouse tomatoes, along with cabbage (leaves, flowers and broccoli), have an export advantage at the national level. Therefore, the optimal cropping pattern of the agricultural unit can be reached through continuing the current cropping pattern along with the addition of greenhouse products with regional advantage and cabbage crop with national and export advantage. The main objective of this study was to determine an optimal cropping pattern in a productive unit located in Pishva County based on regional and national comparative advantage analysis. In order to achieve this goal, the physical indices of the comparative advantage of production including scale advantage, efficiency advantage, and aggregative advantage with the export advantage of both agronomic and greenhouse crops were calculated. The research was an empirical study based on field survey. Data were gathered through a questionnaire, interview with experts from Varamin Agricultural unit and statistical reports from the Ministry of Jihad-Iran Agriculture and FAO. The results of the study showed that the current cropping pattern of Varamin production unit has scale, efficiency and aggregative advantage and therefore the current farming pattern should be continued. These crops also had efficiency advantage in regional level according to Pishva County cropping pattern Analysis. The analysis of the comparative advantage of greenhouse products at the regional level showed that cucumber, colored pepper and tomatoes had comparative advantage in the province of Tehran. The revealed comparative advantage also showed that cucumbers, colored peppers and greenhouse tomatoes, along with cabbage (leaves, flowers and broccoli), have an export advantage at the national level. Therefore, the optimal cropping pattern of the agricultural unit can be reached through continuing the current cropping pattern along with the addition of greenhouse products with regional advantage and cabbage crop with national and export advantage. https://ijaedr.ut.ac.ir/article_70344_6e5b3badbdb52b39d7fcffbea7cdc682.pdf