Christina Bicchieri, S. J. Patterson Harvie Professor of Social Thought and Comparative Ethics at the University of Pennsylvania and author of “Norms in the Wild,” explores decision theory and all it involves, including fundamental attribution bias, confirmation bias, pluralistic ignorance, time discounting, and the foundational beliefs that shape societies. Working with UNICEF, the Gates Foundation, and the World Bank, Dr. Bicchieri hopes to influence developing countries to adopt small changes that will benefit their communities.