"More Than Good Intentions is a must-read for anyone interested in improving the well-being of poor people." —Africa Policy Journal of Harvard 
"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."
—Chris Blattman , Assistant Professor of Political Science and Economics at Yale University
"Self-recommending" —Tyler Cowen , Marginal Revolution
Q&A with authors Dean Karlan and Jacob Appel  with David Leonhardt for the New York Times Economix blog
More than Good Intentions: How a new economics is helping to solve global poverty is a personalized helicopter tour of many recent randomized controlled trials (RCTs) in developing countries. —David McKenzie , Senior Economist, World Bank
Authors Dean Karlan and Jacob Appel respond  to reader questions on the Freakonomics blog
"an absolutely essential read for development economists and aid practitioners." —Diane Coyle, OBE , Author of "The Economics of Enough"
"I’d recommend More Than Good Intentions to any nonprofit board member interested in learning more about RCTs and how they might be used to determine how their nonprofit can have the greatest impact." —
"the value is high for any reader who really wants to know where donor funds can make a difference." —Laura Starita , Philanthropy Action
"A sprightly read that offers many eye-opening, real-world examples of how international development aid can actually work.... The book seethes with the scientific rigor and fact-based optimism that ought to exemplify American foreign aid." —Miller-McCune 
"the book illustrates what most development practitioners know and many funders forget: one size does not fit all." —Andrew Kingman, Alliance Magazine 
“Engaging prose… vivid reportage… an enlightening and optimistic take on smartening up development aid.” —Publisher’s Weekly 
"What does it take to fight global poverty? More money? Better intentions? Actually, Yale economist Karlan and field researcher Appel instead advocate making small but indelible changes in banking practices, health care, and more to improve the lives of the poor. And they're not armchair pedants; they traveled the world to get the ideas furnished in this book. Good work for informed readers." —Library Journal