View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Research Papers in Economics Claremont Colleges working papers in economics Claremont Graduate University • Claremont Institute for Economic Policy Studies • Claremont McKenna College • Drucker Graduate School of Management • Harvey Mudd College • Lowe Institute • Pitzer College • Pomona College • Scripps College Issue Cost and Method of IPO Underwriting: Japan’s Change from Auction Method Pricing to Book Building Kenji Kutsuna Institute for Economic Research Osaka City University Sugimoto, Sumiyoshi, Osaka, 558-8585, Japan
[email protected] Richard Smith Peter F. Drucker Graduate School of Management Claremont Graduate University Claremont, California 91711
[email protected] February 2001 Abstract In 1997, Japan introduced book building an alternative to an auction method of IPO pricing that had been required since 1989. Shortly after its authorization, all IPOs in Japan were priced by book building. The shift occurred despite economic arguments and evidence suggesting that the auction method reduced underpricing. We attribute the shift to creation of an information-based pooling equilibrium where low quality firms that benefit from the imposed auction regime lose the benefit if high quality firms are free to select book building. We examine the effects of the regime change on total issue cost and characteristics of IPO firms. We find that, on average, total issue cost during the auction period would have been similar under book building, but that the regimes have differential effects. For large well-established issuers, book building reduced total issue cost. Small issuers had lower cost under the auction method, but high-quality small firms appear to have been foreclosed from issuing.