Guest post by Jeff Mosenkis of Innovations for Poverty Action.

More important, updated data show that communities served by the “go-getters” are doing better on key health benchmarks such as facility-based childbirth, breast-feeding, vaccinations and nutrition. Based on these findings, the Zambian government changed its recruitment advertising as it looks to expand its health-worker program.

That from Annie Duflo and Dean Karlan, writing in today’s Sunday Review.