What does it take for the World Bank Group to truly become a knowledge bank?  In this episode of What Have We Learned? we explore findings from IEG’s recent evaluation Learning in World Bank Lending, which examines how the World Bank captures, applies, and shares knowledge throughout the project cycle. Host Darlene Christopher is joined by Rasmus Heltberg (IEG), Andrea Kucey (World Bank), and Kristen Fenster (IFC) for a candid conversation on the Bank Group’s strengths, its persistent learning blind spots, and why informal, tacit knowledge often matters just as much as formal lessons.