This paper develops a new framework and statistical tools to analyze stock returns using high-frequency data. We consider a continuous-time multifactor model via a continuous-time multivariate regression model incorporating realistic empirical features, such as persistent stochastic volatilities...

This paper documents that momentum profits in corporate bonds prevail during weakening aggregate credit conditions, and are driven by losers. Consistent with this, we find that a conditional default factor explains the cross-section returns of corporate bond portfolios sorted by past...

This paper investigates the effects of dynamic capital market conditions in a general equilibrium model, employing a process of switching steady-state levels of the volatility of market conditions (SS-uncertainty). Decision-makers predict SS-uncertainty regimes using past fundamental shocks, but...