We characterize the optimal regulation of a firm that undertakes an environmentally risky activity. This firm (the agent) is protected by limited liability and bound by contract to a stakeholder (the principal). The level of safety care exerted by the agent is nonobservable. This level of care...

When firms undertake activities which are environmentally risky, the divergence between social and private incentives to exert safety care requires public intervention. This control occurs both through ex ante regulation and ex post legal investigation. We delineate the respective scopes of...