James Tobin
James Tobin (March 5, 1918 – March 11, 2002) was an American economist who served on the Council of Economic Advisers and the Board of Governors of the Federal Reserve System, and taught at Harvard and Yale Universities. He developed the ideas of Keynesian economics, and advocated government intervention to stabilize output and avoid recessions. His academic work included pioneering contributions to the study of investment, monetary and fiscal policy and financial markets. He also proposed an econometric model for censored endogenous variables, the well-known "Tobit model". Tobin received the Nobel Memorial Prize in Economic Sciences in 1981.
James Heckman
James Joseph Heckman (born April 19, 1944) is a Nobel Prize winning American economist who is currently at the University of Chicago, where he is The Henry Schultz Distinguished Service Professor in Economics and the College; Professor at the Harris Graduate School of Public Policy Studies; Director of the Center for the Economics of Human Development (CEHD); and Co-Director of Human Capital and Economic Opportunity (HCEO) Global Working Group. He is also Professor of Law at the Law School, a senior research fellow at the American Bar Foundation, and a research associate at the National Bureau of Economic Research. In 2000, Heckman shared the Nobel Memorial Prize in Economic Sciences with Daniel McFadden, for his pioneering work in econometrics and microeconomics. As of December 2018 (according to RePEc), he is the most influential economist in the world.