TY - JOUR AU - Wolfers,Justin TI - Diagnosing Discrimination: Stock Returns and CEO Gender JF - National Bureau of Economic Research Working Paper Series VL - No. 11989 PY - 2006 Y2 - January 2006 UR - http://www.nber.org/papers/w11989 L1 - http://www.nber.org/papers/w11989.pdf N1 - Author contact info: Justin Wolfers Department of Economics University of Michigan 611 Tappan St Lorch Hall #319 Ann Arbor, MI 48104 Tel: 734-764-2447 E-Mail: jwolfers@umich.edu AB - A vast labor literature has found evidence of a %u201Cglass ceiling%u201D, whereby women are under-represented among senior management. A key question remains the extent to which this reflects unobserved differences in productivity, preferences, prejudice, or systematically biased beliefs about the ability of female managers. Disentangling these theories would require data on productivity, on the preferences of those who interact with managers, and on perceptions of productivity. Financial markets provide continuous measures of the market%u2019s perception of the value of firms, taking account of the beliefs of market participants about the ability of men and women in senior management. As such, financial data hold the promise of potentially providing insight into the presence of mistake-based discrimination. Specifically if female-headed firms were systematically under-estimated, this would suggest that female-headed firms would outperform expectations, yielding excess returns. Examining data on S&P 1500 firms over the period 1992-2004 I find no systematic differences in returns to holding stock in female-headed firms, although this result reflects the weak statistical power of our test, rather than a strong inference that financial markets either do or do not under-estimate female CEOs. ER -