This paper examines continuous-time models for the price and volatility processes of individual stocks and the S … diffusive volatility innovations we find that the first principal component is highly correlated with index variance innovations …

the derivation of a unique variance risk premium and price of volatility risk based only on the underlying return and … volatility dynamics for a wide class of stochastic volatility (SV) models. The SD approach also derives under similar conditions … volatility risk prices yield in option values in comparison to prices extracted from observed option market data. We also present …

exposure to changes in the price of the underlying stock (delta), and exposure to changes in implied volatility (vega) are …-known market, size, book-to-market, momentum, and short-term reversal factors. Additional volatility, stock, and option market …

exposure to changes in the underlying stock price (delta), and exposure to changes in implied volatility (vega) are removed …-to-market, momentum, short-term reversal, volatility, or option market factors …

For underlying asset motions calibrating skewness and kurtosis beyond the volatility it becomes possible to consider …. Markovian discrete time approximations are simulated to incorporate stochasticity in all three entities, volatility, skewness … stochasticity in volatility and skewness. Implications for a log normal volatility of volatility are presented along with the …

trading volume. This study examines the implication of high-frequency trading for stock price volatility and price discovery …. I find that high-frequency trading is positively correlated with stock price volatility after controlling for firm … fundamental volatility and other exogenous determinants of volatility. The positive correlation is stronger among the top 3 …

tested whether the possible existence of such a "between-markets" premium is captured by the CAPM model, or whether … focuses on volatility, where volatility is derived from a GARCH model. The results suggest that models which account for …

volatility connectedness among the GameStop stock, the U.S. stock market, and the novel market-wide and sectoral short … of return and volatility spillovers from other companies shorted in the market. This result agrees with a view that short …