We use a novel pricing model to filter times series of diffusive volatility and jump intensity from Samp;P 500 index options. These two measures capture the ex-ante risk assessed by investors. We find that both components of risk vary substantially over time, are quite persistent, and correlate...

This paper proposes a time series decomposition of book-to-market ratio (BM) into a trend component and an innovation component (I_BM). Under the framework of stock valuation with growth options, we demonstrate that I_BM is negatively related to the change of growth options and therefore...

We use a novel pricing model to filter times series of diffusive volatility and jump intensity from S&P 500 index options. These two measures capture the ex-ante risk assessed by investors. We find that both components of risk vary substantially over time, are quite persistent, and correlate...