We provide more direct evidence on the causal relation between the quality of financial reporting and investment efficiency. We examine the investment behavior of a sample of firms that disclosed internal control weaknesses under the Sarbanes-Oxley Act. We find that prior to the disclosure, these firms under-invest (over-invest) when they are financially constrained (unconstrained). More importantly, we find that after the disclosure, these firms’ investment efficiency improves significantly.

A large body of accounting research finds that various contracting incentives lead managers to engage in conservative accounting practices. We extend existing research by modeling the impact of extant accounting rules on conservative accounting. Accounting rules typically require assets to be written down when their fair values drop sufficiently below their book values. We document evidence of the resulting non-discretionary conservatism and show that it appears to explain some of the results from previous research on contracting incentives.