Principal-Agent Analysis in the Public Sector

The core logic is the same — delegation under goal conflict and information asymmetry — but the public sector adds complications. Government agencies often face multiple principals, such as a legislature and an executive, with conflicting goals, so there is no single residual claimant or clear bottom line. Public objectives are ambiguous and outputs hard to measure, and many bureaucrats are driven by mission and professional norms rather than material incentives. These features make the standard contractual solutions weaker and the analysis more about institutional design than about pay-for-performance.

McCubbins and Schwartz distinguished two strategies principals use to monitor agents. Police-patrol oversight is active, continuous and centralised: the principal directly samples and inspects agency behaviour, which is thorough but costly. Fire-alarm oversight is reactive and decentralised: the principal establishes rules and channels so that affected citizens and groups raise the alarm when an agency misbehaves, shifting monitoring costs onto third parties. Legislators often prefer fire-alarm oversight because it economises on their time while still constraining agencies.

Not necessarily. Some divergence between agent behaviour and principal preferences — slack or drift — is unavoidable because perfect monitoring is impossible and information asymmetry is the very reason authority was delegated. Eliminating all slack would require monitoring so intensive that its cost exceeds the benefit. The analysis therefore treats a degree of agency loss as efficient and focuses on whether control mechanisms are well matched to the information problem rather than on driving slack to zero, which is both impossible and wasteful.