بررسي عوامل موثر بر عرضه گندم در استان خراسان

The study of effective factors in wheat supply in Khorasan province

The wheat has high nutritive materials and it is important to cover nutritious security for the people of our country .During the last years, wheat has dedicated itself the most cultivation area of farm product as well .It is one of strategic products for decision makers in agricultural sector in Iran .In this paper, effective factors in supplying wheat has been studied using Nerlove model and time series data related to 1984-2003 period. For this purpose, wheat supply took into function wheat price , wheat price and barley price with one lag , amount of annual rainfall , cultivation area of wheat , wheat supply with one lag and time trends.Results show that, although we shouldnʹt ignore the effect of price factors, the wheat supply with one lag and amount of annual rainfall are the most important factors that affect the wheat supply. So, pricing policy is not the sufficient instrument for increasing of wheat supply.