Narrow Results

Various empirical studies have been conducted. However, these studies fail to examine the asymmetric effect of income and price across different quantiles of consumption in the emerging 7 countries. This study extends the existing literature using a novel approach called the quantile ARDL model along with the standard nonlinear ARDL model. Findings based on the nonlinear ARDL model indicate that positive shocks in income positively and significantly affect consumption in the short- and long-run. On the other hand, negative shocks in income do not significantly affect consumption which, therefore, suggests an asymmetric effect of income on consumption. In addition, the quantile ARDL estimates indicate that income positively affects consumption across all quantiles of the consumption except the 95th quantile. Moreover, the quantile ARDL estimates indicate that price variations negatively affect consumption across all emerging 7 countries. These estimates suggest that devising policies without considering the asymmetric effect may lead to unfavorable consequences.

The effect of economic policy uncertainty (EPU) on other macroeconomic and financial variables has been the subject of prior research investigations. However, a dearth of work explicitly examines the connection between EPU exchange rate changes. By utilizing both nonlinear ARDL (NARDL) and multiple threshold NARDL (MTNARDL) models, we add to the body of literature by analyzing the nonlinear impact of EPU on exchange rates. The MTNARDL model, which distinguishes between the impacts of very small changes in the EPU from very large changes in the EPU on the exchange rate, is an expanded version of the NARDL model. The MTNARDL results confirm an asymmetric effect of EPU on exchange rates in the long run for all sample countries, contrary to the NARDL estimates, which show that EPU has an asymmetric effect in Brazil, Turkey, and China only. Similarly, only one country is supported by NARDL estimates for the short-run asymmetric effect, but MTNARDL estimates support the effect in five countries. Therefore, in our study, the MTNARDL model aids the prior literature in examining the more comprehensive impact of EPU on the exchange rates.