Abstract :
The type of foreign policy affect on a country's economic variables and exporter surplus. Also, Pistachio is one of the most important export products and studying these markets have an important role on the earnings of exporters. In this study, factors on the export of Iran pistachios were estimated by using the ARDL approach and in Real Exchange and Nominal exchange rate. In this study, volatility of real exchange rate estimated in GARCH (1, 1) model. Result showed that the price elasticity was 1.1 and 1.6 in the real exchange rate and nominal exchange rate models, respectively. Changes in welfare surplus pistachio exporters, according to two types of price elasticity were obtained, fhich showed a surplus of pistachio exporters in the floating exchange rate policy would be much greater. Also, in log run, exchange rate volatility had a negative effect on the export product. Finally, it is suggested that floating exchange rate policy should be adopted, but the volatility of exchange rate must be reduced.
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