We study three elements of management control: incentive compensation, performance monitoring, and delegation of authority to managers to contract with lower‐level employees. Using a principal‐agent model, we highlight important direct and indirect interactions between and among these endogenous control elements, themes often emphasized in the economics and accounting literatures using the analogy of a three‐legged stool. We identify circumstances in which control elements are complements or substitutes and exhibit a coherent pattern of practices observed together. For instance, contrary to typical predictions that quality monitoring complements steep effort incentives, we find that when contracting authority adjusts easily to changes in firm circumstances, then both incentive pay and contracting authority substitute for monitoring quality, while incentive pay complements contracting authority. Overall, our findings suggest a number of empirical implications and generally inform a growing literature that documents the presence or absence of complementarities among management control elements.

We find that firms are less likely to report an internal control material weakness (as mandated by the Sarbanes‐Oxley Act) in a given year if one of their audit committee members is concurrently on the board of a firm that disclosed a material weakness within the prior three years. We find a similar spillover effect for financial restatement disclosures. The spillover from material weakness disclosures is evident only if a shared director has more experience with the disclosing firm or can channel more information about the disclosed material weakness. Our findings suggest that prior director experiences outside the firm influence the work of audit committees inside the firm. One rationale is that a director's prior experience with an adverse disclosure helps diffuse important insights and serves as a catalyst for improvements in a firm's internal control and financial reporting practices. An alternative explanation, which we cannot dismiss, holds that a director's prior experience helps a firm to underreport material weaknesses and financial restatements without any attendant improvements in the underlying practices.