J. W. Mason is a Fellow at the Roosevelt Institute and associate professor of economics at John Jay College, City University of New York. His work focuses on macroeconomic policy, corporate and public finance, and debt. His recent academic publications includes articles on debates over financialization; the interaction of monetary and fiscal policy; state and local government assets and debt; and the evolution of household debt in the United States. He is frequently quoted in the press on macroeconomic policy questions.

In addition to his scholarly work, he has done policy work for the New York Working Families Party, the New York City Independent Budget Office, and the AFL-CIO, and has published popular articles in The Nation, In These Times, The American Prospect, Jacobin, Dissent and Boston Review, among other venues.