independent auditing mitigates the problem, implying that accounting quality can enhance investments, size of public stock markets …

We examine aggregate idiosyncratic volatility in 23 developed equity markets, measured using various methodologies, and … we find no evidence of upward trends when we extend the sample till 2008. Instead, idiosyncratic volatility appears to be … relatively short duration. We also document that idiosyncratic volatility is highly correlated across countries. Finally, we …

We test the hypothesis that individual investors contribute to the idiosyncratic volatility of stock returns because …, theory implies that the volatility of stocks affected by the reform should decrease relative to other stocks. This prediction … are also consistent with models in which individual investors, acting as noise traders, are a source of volatility. …

This Paper investigates the link between a firm’s competitive environment and the idiosyncratic volatility of its stock … volatility. We posit that competition affects volatility in two distinct and inter-related ways. Market power works as a hedging … information uncertainty for investors and therefore lower return volatility. We find strong support for both effects. Our results …

volatility of revenues, have failed to save a sufficiently high proportion of their resource revenues and failed to make high …