Asymmetric effect of exchange rate and investors' sentiments on stock market performance

Purpose - This study investigates the asymmetric effects of exchange rate and investors' sentiments simultaneously on stock market performance in the United States context. In addition, we have also considered the potential effect of the global financial crisis of 2008 on this nexus. Design/methodology/approach - We have employed the NARDL (nonlinear autoregressive distributed lag) model on monthly data ranging from January-1999 to December-2018 to investigate the asymmetric (short- and long-run) effects of exchange rate and investors' sentiments on stock market performance. We have also broken down the data into two segments, pre and post-crisis periods to capture the effect of the global financial crisis of 2008. Findings - The findings of the study reveal that exchange rate and investors' sentiments simultaneously affect stock market performance and omitting any of these variables can produce misleading results. Results also show that the effect of sentiments is stronger than the exchange rate. There is significant evidence of asymmetric short-run and long-run effects of both explanatory variables. Moreover, we have found different outcomes for pre and post-crisis periods. Specifically, the impact of macroeconomic variables on the stock market has been substantiated in the post-crisis period. Originality/value - Several studies are available which separately evidence the effects of investors' sentiments and exchange rate on performance of the stock market but they can suffer from the problem of omitted variable bias. This study is conducted to test the said effect simultaneously in a single model. Moreover, this study is considering short-run and long-run asymmetry in analyzing the effects of explanatory variables along with the inclusion of the global financial crisis of 2008.