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Decentralization theories in the economic literature are considered as promoting government's productivity and efficiency and establishing regional balances. Decentralization is also basic tool for stablishing a market – based economy in developing economies. After Islamic Revolution in Iran and especially after the imposed war, fiscal and economic decentralization was officialhy considered as a strategic policy for the developing of provinces.
Firstly, they founded planning committee and then planning council to step up towards decentralization. But the main concern for economic planner is to investigate the mechanism of the impact of fiscal decentralization on economic growth. In this paper by using augmented Solow model the direct and indirect effect of fiscal decentralization on economic growth is evaluated. Using auto regressive distributed lag models, we found that fiscal decentralization (the ratio of province's budgets to national budget) positively affects the rate of economic growth both in the short run and the long run. One percent increase in fiscal decentralization increase economic growth by 0.05 percent. Also positively affects on economic growth through macro stability.
JEL Classification: E62, H77, O20, 040.