TY - JOUR AU - Mitchell,Mark AU - Pedersen,Lasse Heje AU - Pulvino,Todd TI - Slow Moving Capital JF - National Bureau of Economic Research Working Paper Series VL - No. 12877 PY - 2007 Y2 - January 2007 UR - http://www.nber.org/papers/w12877 L1 - http://www.nber.org/papers/w12877.pdf N1 - Author contact info: Mark Mitchell Graduate School of Business Administration Harvard University Morgan Hall 125 Boston, MA 02163 Tel: 617/495-1014 E-Mail: mmitchell@cnhpartners.com Lasse H. Pedersen NYU Stern Finance 44 West Fourth Street Suite 9-190 New York, NY 10012 Tel: 212/998-0359 Fax: 212/995-4233 E-Mail: lpederse@stern.nyu.edu Todd Pulvino CNH Partners 2 Greenwich Plaza, 1st Floor Greenwich, CT 06830 Tel: 203/742-3002 E-Mail: tpulvino@cnhpartners.com AB - We study three cases in which specialized arbitrageurs lost significant amounts of capital and, as a result, became liquidity demanders rather than providers. The effects on security markets were large and persistent: Prices dropped relative to fundamentals and the rebound took months. While multi-strategy hedge funds who were not capital constrained increased their positions, a large fraction of these funds actually acted as net sellers consistent with the view that information barriers within a firm (not just relative to outside investors) can lead to capital constraints for trading desks with mark-to-market losses. Our findings suggest that real world frictions impede arbitrage capital. ER -