Weiman specializes in 19th and 20th century U.S. economic history, the political economy of contemporary U.S. criminal justice policy, and the history of economic thought. His current research focuses on the evolution of the U.S. banking-monetary system from the demise of the Second Bank of the United States to the founding of the Federal Reserve System. He teaches core courses in Barnard’s distinctive Political Economy track and joint Economic and Social History Program.