Surprisingly, little is known about the effects of short-sale constraints on herd behaviour. Since institutional investors have come to dominate mature stock markets and rely extensively on short sales, constraining these traders may influence the asset pricing process. The literature on short-selling restrictions focusses mainly on a ban's impact on market efficiency, liquidity and overpricing. The authors examine bans on selected financial stocks in six countries during the 2008-2009 global financial crisis, which provided a setting to analyze the impact of short-sale restrictions. In particular, the authors focussed on short-sale constraints’ effect on institutional investors’ trading behaviour and the possibility of generating herding behaviour. They conclude that the empirical evidence shows that short-selling restrictions exhibit either no influence on herding formation or induce adverse herding.


Part of Series

CIGI Papers present in-depth analysis and discussion on governance-related subjects. They include policy papers that present CIGI experts' positions or contributions to policy debates, and background papers that contain research findings, insights and data that contribute to the development of policy positions.
  • Martin T. Bohl is professor of economics, Centre for Quantitative Economics, Westphalian Wilhelminian University of Münster. From 1999 to 2006, he was a professor of finance and capital markets at the European University Viadrina Frankfurt (Oder). His research focuses on monetary theory and policy as well as financial market research.

  • Pierre Siklos is a CIGI senior fellow. His research interests include applied time series analysis and monetary policy, with a focus on inflation and financial markets.

  • Arne C. Klein is an assistant lecturer in the Department of Economics at the Westphalian Wilhelminian University of Münster. From July to October 2011, he was a visiting scholar at Wilfrid Laurier University, Waterloo, Canada.