Peter Arthur Diamond, born April 29, 1940, is an American economist recognized for his significant contributions to economic theory and public policy. He was awarded the Nobel Memorial Prize in Economic Sciences in 2010, sharing it with Dale T. Mortensen and Christopher A.
Pissarides for their analysis of markets with search frictions. Diamond is an Institute Professor at the Massachusetts Institute of Technology (MIT) and is particularly known for his analysis of U.S.
Social Security policy.