following the auctions. This effect is stronger when market volatility is higher. We rationalize both findings using a simple …

future exchange rates. The purpose of this paper is to systematically assess the quality of option based volatility, interval … option prices. We find that the OTC implied volatilities explain a much larger share of the variation in realized volatility …

returns and the equity variance premium. We evaluate a plethora of state-of-the-art volatility forecasting models to produce …

filtered using EGARCH specifications. The estimation results show that upgrades do not have significant effects on volatility …, but downgrades increase stock and bond market volatility. Contagion is present, with sovereign rating announcements … (increase) in volatility in other countries. The empirical results show also a financial gain and risk (value-at-risk) reduction …

speculative trading increases. As a result, market liquidity deteriorates and short-term volatility rises. Our findings hold for a …

We propose a new approach to measuring the effect of unobservable private information or beliefs on volatility. Using … high-frequency intraday data, we estimate the volatility effect of a well identified shock on the volatility of the stock … that, as the publicly available information becomes stale, volatility effects and its persistence should increase, as the …