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IPO Underpricing Over the Very Long Run


David Chambers


University of Cambridge - Judge Business School, Department of Finance & Accounting

Elroy Dimson


London Business School; University of Cambridge - Judge Business School

2009

Journal of Finance, Forthcoming

Abstract:     
A central measure of the efficiency of the Initial Public Offering (IPO) market is the extent to which issues are underpriced. Legal, regulatory, disclosure and underwriting pressures have moulded the IPO market since World War II. This paper presents new and comprehensive evidence covering British IPOs since World War I. We find that during the period from 1917 to 1945, public offers were underpriced by an average of only 3.80%, as compared to 9.15% in the period from 1946 to 1986, and even more after the UK stock market was deregulated in 1986. The post-WWII rise in underpricing cannot be attributed to changes in firm composition, and occurred in spite of improvements in regulation, disclosure, and the prestige of IPO underwriters.

Number of Pages in PDF File: 56

Keywords: Initial public offering, underpricing, regulation, investor protection, financial history

JEL Classification: G18, G24, G32, N24

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Date posted: March 20, 2006 ; Last revised: September 29, 2012

Suggested Citation

Chambers, David and Dimson, Elroy, IPO Underpricing Over the Very Long Run (2009). Journal of Finance, Forthcoming. Available at SSRN: http://ssrn.com/abstract=889542

Contact Information

David Chambers
University of Cambridge - Judge Business School, Department of Finance & Accounting ( email )
Trumpington Street
Cambridge, CB2 1AG
United Kingdom
44 (0)1223 339700 (Phone)
Elroy Dimson (Contact Author)
London Business School ( email )
Sussex Place
Regent's Park
London, NW1 4SA
United Kingdom
44 20 7000 7000 (Phone)
44 700 607 7390 (Fax)
HOME PAGE: http://www.london.edu/faculty/edimson
University of Cambridge - Judge Business School
Trumpington Street
Cambridge, CB2 1AG
United Kingdom
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