I am interested in behavioral economics broadly defined to include the effect of culture on how individuals see the world around them, how they think, and what they want.  I co-directed the World Bank’s World Development Report 2015: Mind, Society, and Behavior, the first synthesis of applications of behavioral economics to economic development.  Since I retired from the World Bank in 2020, I have taught behavioral development economics at Columbia University.  I have a forthcoming book called The Other Invisible Hand: How Culture Changes Us and the Societies We Create.  The book draws on the wave of micro-studies in the 21st century that quantify the impact, through changes in culture, of events on social and economic change.  The book explains why there are systematic differences across groups in the willingness to cooperate, to sanction norm violators, to invest in the future, and to feel empathy for others.  The title The Other Invisible Hand is a reference to Adam Smith’s “invisible hand.”  The other invisible hand is culture—the concepts, categories, narratives, and simple theories of how the world works through which we process information.  The fact that people in the same society see so much through the same lens can make it easier for them to cooperate and reap the gains that such cooperation entails.  But even more than the invisible hand of markets, this other invisible hand is often flawed, leading some societies into dysfunctional behaviors that impede their ability to enjoy shared prosperity.  My work spans conceptual analysis and grassroots fieldwork and has been published in the American Economic Review and many other journals.  I co-edited The Economics of Rural Organization and Poverty Traps.  I was a National Merit Scholar and earned a PhD in economics from Princeton University.