Risk premia in the stock market are assumed to move with time varying risk. We present a model in which the variance of time excess return of a portfolio depends on a state variable generated by a first-order Markov process. A model in which the realization of the state is known to economic...

Risk premia in the stock market are assumed to move with time varying risk. We present a model in which the variance of time excess return of a portfolio depends on a state variable generated by a first-order Markov process. A model in which the realization of the state is known to economic...

Using a comprehensive dataset of hedge fund 13F filings, we analyze hedge fund trading from 1998-2010 to determine if investor redemptions cause fire sales and stock market disruptions. We find evidence of hedge fund fire sales in the two quarters with the worst stock market performance. During...