خلاصه ماشینی:
Tahami Pour* Received: 10 July 2009 Accepted: 29 March 2011 This study investigates consistency in aggregation of wheat production in Iran’s provinces using data over period 1983-2007 to answer the question of whether one can aggregate all provinces with respect to wheat production and apply a unique economic policy to wheat production in all provinces.
JEL Classification: C100, D200 Keywords: Aggregation over provinces, mean scaling hypothesis, wheat production, Iran ________________________________________________ * Respectively Professor and PhD candidate of Agricultural Economics and Development, Tehran University, Iran E-mail: mortezatahamipour@yahoo.
JEL Classification: I12, L11, O13, Q17, Q18 Keywords: food security, agriculture sector, agricultural inputs, import demand ________________________________________________ * Respectively: Assistant Professor, Department of Agriculture, Islamic Azad University, and Senior Expert, Agricultural Planning, Economic Research and Rural Development Institute E-mail:kohsark@yahoo.
JEL Classification: C52, C53 Keywords: agricultural sector, forecasting, growth rate ________________________________________________ Respectively Assistant Professor and Msc student of Agricultural Economics, Shahid Bahonar University, Kerman, Iran E-mail: zare@mail.
JEL Classification: M31, M39 Keywords: marketing, warm-water cultured fish farms, Mazandarn province ________________________________________________ * Respectively Associate Professor, Associate Professor, Assistant Professor and Postgraduate student of Agricultural Economics, Tabriz University, Tabriz, Iran Email: rassulmohammadrezaei@yahoo.
JEL Classification: Q17, Q18, F14 Keywords: comparative advantage, effective protection coefficient, domestic resource cost, pomegranate, Fars ________________________________________________ * Respectively Assistant Professor of Agricultural Economics, Agricultural Science and Natural Resources University, Gorgan, Researcher in Institute of Programming and Agricultural Economics Researches and MSc Student of Agricultural Economics, Agricultural Science and Natural Resources University, Gorgan E-mail:r_joolaie@yahoo.