That is the title of Dean Karlan and Jacob Appel’s new book. The subtitle: How a new economics is helping to solve global poverty.

One way to think of the book is the foreign bureau of Nudge. Basically, it’s an account of what we learn from Dean’s intersecting interests–behavioral economics, field surveys, and (yes) randomized control trials. If you want insight on the latest frontier in development economics, you should buy it. If you’re one of those people that are on the frontier, buy it for your mom. Finally she will understand what you do for a living.

Dean has agreed to do a Q&A with me on the blog, and at some point I will ask for reader questions. Feel free to drop ideas in now.