We contribute to the literature by studying of economic policy uncertainty (EPU) for major net oil importers (USA, Europe and China) on Gulf Cooperation Council (GCC) stock markets. We use panel data methods to estimate different specification. We find that (i) an increase in EPU affect...

The main goal of this paper is to investigate whether the long memory behavior observed in many volatility energy futures markets series is a spurious behavior or not. For this purpose, we employ a wide variety of advanced volatility models that allow for long memory and/or structural changes :...

The aim of this paper is to study the influence of investor attention on the French stock market activity and volatility. Following an original way, we construct a non-standard proxy of investor attention on the basis of investors' online search behavior exclusively provided by “Google...

We examine the relation between stock volatility and asymmetric information empirically. We use two proxies of information asymmetry: institutional ownership and analyst coverage. We find that firms covered by more analysts are more likely to have less volatile returns. A significant and...