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Article

Short-sale constraints and efficiency of the spot-futures dynamics

Citation
McMillan D & Philip D (2012) Short-sale constraints and efficiency of the spot-futures dynamics. International Review of Financial Analysis, 24, p. 129–136. https://doi.org/10.1016/j.irfa.2012.09.001

Abstract
This paper studies the spot and futures cross-market efficiency implications of the regulatory short-selling constraints imposed during the 2008-2009 financial crisis. We find that the equilibrium position for the basis during the ban period is below that normally seen, with the spot price higher relative to the futures price. This suggests that holding the spot was more valuable than holding the futures during the ban period. Further, we find that the speed of adjustment has slowed down and in some cases become statistically insignificant, suggesting that arbitrage is less effective during the ban period. The results presented here have implications for regulators and traders regarding the efficiency of these markets during a short-sale ban.

Keywords
Short-sale constraints; Short-selling; Arbitrage; Mispricing

Journal
International Review of Financial Analysis: Volume 24

StatusPublished
Author(s)McMillan, David; Philip, Dennis
Publication date30/09/2012
Date accepted by journal06/09/2012
URLhttp://hdl.handle.net/1893/11772
PublisherElsevier
ISSN1057-5219
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