CIAO DATE: 10/2010
September 2010
In response to the recent financial crisis, many governments chose to ban or restrict short sales, hoping to mitigate the impact of the stock market downturn. Stock markets function as a continuous election, held to determine the allocation of resources with buyers voting for and sellers voting against investment in particular stocks. Banning short selling is akin to disenfranchising the "no" voter, thereby creating a distortion in the resource allocation process. Ban-induced price distortions damage the integrity of stock prices among investors and potentially cause stocks to expand beyond what is optimal for the firms and the economy.
Resource link: Short Sales Bans: Shooting the Messenger? [PDF] - 937K