Book Cover - Portfolios of the PoorPortfolios of the Poor: How the World’s Poor Live on $2 a Day, with Daryl Collins, Stuart Rutherford, and Orlanda Ruthven.

Read Chapter 1 (PDF Icon), Français. Español.

Gates Foundation Photo Gallery

Princeton University Press. May 2009.
South African edition, University of Cape Town Press 2009.
South Asian edition, Permanent Black 2009.

Reviewed in the Washington Post, New Yorker, Science Magazine, Publisher’s Weekly, Guardian (UK), Journal of Economic Literature, Development and Change, Population and Development Review, Ethics & International Affairs (Vol. 23.4), Enterprise and Society (Vol. 11, March 2010), Business Standard (India), Development and Change (1/2010).

Interviews or discussion: The Economist, Boston Globe, Fox Business News, Slate, Guardian (UK), NPR Planet Money, NPR Here and Now, BBC Today, CBC Dispatches, Nicholas Kristof "On the Ground" blog (New York Times), "Idea of the Day" blog (New York Times),, Development Drums, Daily Kos, DevEx, Mint (India), Globe and Mail (Canada), VoxEU, SocialEdge blog, From Poverty to Power (Oxfam) blog, Bombay News, Vambana (India).

Book Cover - Economics of MicrofinanceThe Economics of Microfinance, with Beatriz Armendáriz (Harvard University).

MIT Press. Look inside
Second Edition: Spring 2010.
First Edition: June 2005.
Paperback edition: September 2007.

Endorsements for the 1st Edition.

Reviewed in the Journal of Economic Literature, Journal of International Economics, Times Higher Education Supplement, Choice, Economic Record, Southern Economic Journal, Journal of Economics, MicroBanking Bulletin, Development Policy Review, The Developing Economies, Journal of Economic Issues, Finance and the Common Good, Economic Development and Cultural Change, Journal of International Development, ADB Finance for the Poor.

Contracts for translations into Chinese (China Social Sciences Press, Beijing); Spanish (Fondo de Cultura, Mexico City); Japanese (Nippon Hyoronsha, Tokyo); Polish (Anwero Tomasz Wozniak, Gdansk); Bahasa Indonesia (Marhin Kiri). South Asian English-language edition (Prentice Hall/India), 2008.