Sydney Ludvigson is Julius Silver, Roslyn S. Silver, and Enid Silver Winslow Professor of Economics at New York University, and a Co-Director of the National Bureau of Economic Research Asset Pricing Program. Before joining NYU she worked at the Federal Reserve Bank of New York. She obtained her PhD in economics at Princeton in 1996. Her research centers on the interplay between asset markets and macroeconomic activity, with applications to role of monetary policy in stock market fluctuations, the measurement and analysis of systematic and demonstrable errors in macroeconomic expectations by both professional forecasters households, the use of machine learning and AI algorithms to measure errors in human judgement, the pricing and risk premia of stock, bond, and housing markets, the role of heterogeneity and wealth inequality in housing and stock market valuations, and the dynamic causal effects of uncertainty for business cycle fluctuations.