TY - JOUR AU - Ang,Andrew AU - Gu,Li AU - Hochberg,Yael V. TI - Is IPO Underperformance a Peso Problem? JF - National Bureau of Economic Research Working Paper Series VL - No. 12203 PY - 2006 Y2 - May 2006 UR - http://www.nber.org/papers/w12203 L1 - http://www.nber.org/papers/w12203.pdf N1 - Author contact info: Andrew Ang Columbia Business School 3022 Broadway 413 Uris New York, NY 10027 Tel: 212/854-9154 Fax: 212/662-8474 E-Mail: aa610@columbia.edu Yael Hochberg Kellogg School of Management Northwestern University 2001 Sheridan Road Evanston, IL 60208 Tel: 847/467-4574 Fax: 847/491-5719 E-Mail: y-hochberg@kellogg.northwestern.edu M2 - featured in NBER digest on 2006-05-08 AB - Recent studies suggest that the underperformance of IPOs in the post-1970 sample may be a small sample effect or %u201CPeso%u201D problem. That is, IPO underperformance may result from observing too few star performers ex-post than were expected ex-ante. We develop a model of IPO performance that captures this intuition by allowing returns to be drawn from mixtures of outstanding, benchmark, or poor performing states. We estimate the model under the null of no ex-ante average IPO underperformance and construct small sample distributions of various statistics measuring IPO relative performance. We find that small sample biases are extremely unlikely to account for the magnitude of the post-1970 IPO underperformance observed in data. ER -