This paper examines the relationship between the 1994 change in audit firm legal structure from general partnerships to limited liability partnerships (LLPs) on underpricing in the initial public offering (IPO) market. The change in legal structure of audit firms reduces an audit firm's wealth at risk from litigation damages and reduces the incentives for intrafirm monitoring by partners within an audit firm. Prior research suggests that underpricing protects underwriters from litigation damages, and that the level of underpricing varies inversely with both the amount of implicit insurance provided by the audit firm and the quality of the audit services provided. We hypothesize the change in audit firm legal structure reduced the assets available from audit firms in IPO‐related litigation and indirectly reduced audit quality by lowering intrafirm monitoring. As a result, underwriters have incentives as a joint and several defendant with the audit firms to increase IPO underpricing, particularly for high‐litigation‐risk IPOs, following audit firms' shifts to LLP status. Our findings are consistent with this hypothesis.

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