عنوان مقاله [English]
We describe a simple model that fits well with Iranian economy, and extends a methodology which Chary at el. (2007) demonstrated. In addition to four traditional wedges, we introduce additional Trade wedge. We then evaluate the contribution of these wedges to the fluctuations in Iran during last three years. Because of international sanction, trading cost increases, and firms have difficulty to importing intermediate goods, which is used in production lines. The significance of which is measured by Trade wedge. The results show that efficiency wedge accounts fluctuations in output. Trade wedge unable to explain fluctuations in output, but by extracting the effect of the fluctuation of nominal exchange rate it accounts for recession in 2013. The fluctuation of nominal exchange rate in 2012 is the cause of increase in trade barrier, and international santions are the cause of increase in trade barrier in 2013.
JEL Classification: E32; E37
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