Recently published in the Journal of Development Effectiveness, this article looks at the systematic collection and learning from impact evaluations from 1981 t0 2012. All articles were stored in 3ie’s web-based repository.
The article shows that, “of the 2259 studies published from 1981 to 2012, annual publication increased dramatically after
2008. Most studies are on health, education, social protection and agriculture and are concentrated in South Asia, East Africa, South and Central America and Southeast Asia. There are statistically significant differences in time between end line data
collection and publishing by the publication type, and institutional affiliation of authors has shifted towards countries in North America and Europe.”
Read the full article here: JDE overview of impact evals