Öz
Today, risk and uncertainty are of great importance for all markets traded around the world. This situation can be seen more clearly in the stock markets of countries, which are the most active markets of financial markets in particular. In fact, economic, political and financial uncertainties in the world's leading countries' stock exchanges cause loss of returns in the stock markets of many countries. In this study, it is aimed to investigate this situation in selected developed and developing countries. However, it was questioned the existence of a relationship between the economic and political uncertainty index (EPU) calculated for each country in G7 and BRIC countries and the stock markets of the countries in period of the January 2015 and November 2020. As a result of the analysis using the Konya panel causality test, it was observed that there was unidirectional causality from EPU to stock markets throughout the panels. Among these countries, it was found results a unidirectional causality from the EPU index to the Stock Markets for UK, US and Brazil, while a bidirectional causality occurred only for Germany. Apart from this, it was observed that neither unidirectional nor directional causal relationship accurred in other countries.