We introduce continuous-time models that capture the salient features of the short-term interest rate and remain tractable for asset pricing applications. We extend classical specifications within and outside of the affine class to multi-factor settings with latent variables that are readily...

With an eye toward financial asset pricing, asset allocation, and risk management, I review and interpret the rapidly-growing literature on modeling and forecasting realized volatility constructed from high-frequency returns. I discuss a variety of applications and extensions, including recent...