Based on previously untapped archival material, this chapter discusses the establishment of the operations evaluation function at the World Bank between the mid-1960s and the early 1970s, and the conflicting visions that shaped it. The birth of the operations evaluation function at the Bank was...

The literature on development effectiveness has traditionally focused on the ex-post analysis of projects. While this is the appropriate method of measuring benefits, a previous step must be taken as a forerunner to good ex-post evaluation: the measurement of the efficiency in the execution of...