This paper provides an analysis of the choice of method for raising additional equity capital by listed firms. Examination of expenses reported to the SEC indicates that rights offerings involve significantly lower costs; yet underwriter are employed in over 90 percent of the offerings. The underwriting industry, finance textbooks, and corporate proxy statements offer several justifications for the use of underwriters. However, estimates of the magnitudes of these arguments indicate that they are insufficient to justify the additional costs of the use of underwriters. The use of underwriters thus appears to be inconsistent with rational, wealth-maximizing behavior by the owners of the firm. The paper concludes with an examination of alternate explanations of the observed choice of financing method.