Adaptive and Maladaptive Differentiation within the World Bank’s Accountability Complex: How Rivalry between Principals and Agents Affects Accountability

Abstract

Over the last 30 years, the accountability system of the World Bank Group institutions has evolved into a complex ecosystem, encompassing the Inspection Panel, the Compliance Advisor Ombudsman (CAO), and the Grievance Redress Service (GRS). The creation of the World Bank Accountability Mechanism (WBAM) in 2020, which encompassed the existing Inspection Panel and Dispute Resolution Service, added another layer of complexity to the Bank’s accountability system. This study examines the evolution of the World Bank’s accountability mechanisms by combining principal–agent theory with scholarship on regime complexity. It contends that the emergence of multiple, sometimes overlapping accountability bodies within the World Bank Group arose from competitive interactions and rivalry between the Executive Board (the principals) and World Bank management (the agent). Over time, the proliferation of accountability bodies has led to adaptive differentiation, with the creation of the CAO and GRS, increasing efficiency and introducing a division of labor between the Inspection Panel and the CAO. Conversely, as part of the principal–agent contest, the establishment of the WBAM introduced maladaptive differentiation and fragmentation into the Bank’s accountability system. By tracing the development of these multiple accountability mechanisms, the study helps us to better understand the evolution of the Bank’s complex multilayered accountability ecosystem.