Investigating the asymmetric exchange rate pass-through to domestic prices

The purpose of this study is to investigate the effect of positive and negative shocks of exchange rate on domestic prices using seasonal data for Iran during (1969-1396: 4) and applying the Nonlinear Auto-Regressive Distributed Lag( NARDL) model to analyze the asymmetric exchange rate pass-through to domestic prices considering the depreciation and appreciation of the national currency. The results of the NARDL model show that positive and negative exchange rate shocks have asymmetric effects on price indices in the Iranian economy, so that in the long run negative exchange rate shocks are unable to influence all four price indices, but positive exchange rate shocks have a positive and significant impact on the three indices (consumer price index, producer price index and import price index) in the long run, but it has no significant effect on export price index. Also, in the short run, positive shocks have a positive and significant impact on consumer, import and export price indices, but negative shocks in the short run have no significant effect on these indicators. The producer price index also responds positively to both positive and negative shocks in the short run, so that negative shocks have a greater impact on producer price index (in the short run) than positive shocks.