William Branch is a Professor of Economics at the University of California, Irvine.  He is also a Research Affiliate of CESifo, the International Network on Expectational Coordination, the Institute of Mathematical Behavioral Sciences, and the Center for Economic and Public Policy.  He is an Associate Editor at the Journal of Economic Dynamics and Control and a Co-Editor of Economic Inquiry specializing in learning and DSGE models.

William Branch's research focuses on adaptive learning and model misspecification in macroeconomic models.  He has applied his research to address issues in monetary policy, monetary theory, asset pricing, stock market bubbles and crashes, house prices, unemployment, business cycle dynamics, and macroeconomic forecasting.