We find that the bans on covered short sales, implemented in several countries during the financial crisis of 2008-09 improved market liquidity or at least had a neutral impact; a result we argue could be expected in theory, given a simple variation on the Diamond-Verrechia (1987) model. The...

We use the post-IPO market to examine this accuracy of price adjustment to new information. The unique setting of immediate aftermarket allows us to assess subject after the trading has just begun and investors possess little information about stock return properties. They are, therefore, likely...