To shed light on the empirical relevance of the limits to arbitrage, we study hedge funds’ trading patterns in the stock market during liquidity crises. Consistent with arbitrageurs’ limited ability to provide liquidity, we find that at the time of liquidity crises hedge funds reduce their...

We provide a new method to derive the state price density per unit probabilitybased on option prices and GARCH model. We derive the risk neutraldistribution using the result in Breeden and Litzenberger (1978) and thehistorical density adapting the GARCH model of Barone-Adesi, Engle, andMancini...