This paper shows that the increased policy-selectivity of aid allocations observed in recent years provides recipient countries an incentive to improve policies. The paper estimates that a change in the World Banks Country Policy and Institutional Assessment policy index from 1.5 to 2 for a...

This paper investigates the impact of World Bank development policy operations on the quality of economic policy during the period 1998-2015. A new theoretical framework distinguishes among three effects that have been conflated hitherto: (a) marginal impacts of additional policy actions within...

This paper compiles project-level data from the World Bank's lending history to describe patterns and the composition of its portfolio. The paper focuses particularly on the effect of countries' transition from International Development Association to International Bank for Reconstruction and...