Impact evaluations must be embedded in the ongoing process of policy and programme design in order to be effective in influencing country policy. This is the primary lesson found in this book, which is based on the rigorous impact evaluations and country-case study analysis of government-run...

Poor Numbers -- Contents -- List of Illustrations -- Preface -- Acknowledgments -- Introduction -- 1. What Do We Know about Income and Growth in Africa? -- 2. Measuring African Wealth and Progress -- 3. Facts, Assumptions, and Controversy: Lessons from the Datasets -- 4. Data for Development:...