TY - JOUR AU - Gandhi,Priyank AU - Lustig,Hanno TI - Size Anomalies in U.S. Bank Stock Returns: A Fiscal Explanation JF - National Bureau of Economic Research Working Paper Series VL - No. 16553 PY - 2010 Y2 - November 2010 UR - http://www.nber.org/papers/w16553 L1 - http://www.nber.org/papers/w16553.pdf N1 - Author contact info: Priyank Gandhi 110 Westwood Plaza Los Angeles, Ca 90095 E-Mail: gandhip@ucla.edu Hanno Lustig UCLA Anderson School of Management 110 Westwood Plaza, Suite C413 Los Angeles, CA 90095-1481 Tel: 310/825-1011 Fax: 310/825-9528 E-Mail: hlustig@anderson.ucla.edu AB - The largest commercial bank stocks, measured by book value, have significantly lower risk-adjusted returns than small- and medium-sized bank stocks, even though large banks are significantly more levered. We find a size factor in the component of bank returns that is orthogonal to the standard risk factors. This size factor, which has the right covariance with bank returns to explain the average risk-adjusted returns, measures size-dependent exposure in banks to bank-specific tail risk. The variation in exposure can be attributed to differences in the financial disaster recovery rates between small and large banks. A general equilibrium model with rare bank disasters can match these alphas in a sample without disasters provided that the difference in disaster recovery rates between the largest and smallest banks is 35 cents per dollar of dividends. ER -