Leonid Hurwicz was a Polish–American economist and mathematician, known for his work in game theory and mechanism design. He originated the concept of incentive compatibility, and showed how desired outcomes can be achieved by using incentive compatible mechanism design. Hurwicz shared the 2007 Nobel Memorial Prize in Economic Sciences for his seminal work on mechanism design. Hurwicz was one of the oldest Nobel Laureates, having received the prize at the age of 90. The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel 2007, announced October 15, 2007. Leonid Hurwicz, Eric S. Maskin, and Roger B. Myerson, “for having laid the foundations of mechanism design theory”. Leonid Hurwicz: born 1917, Moscow, Russia. Eric S. Maskin: born 1950, New York, NY, USA. Roger B. Myerson: born 1951, Boston, MA, USA. Wiki link Wiki link Wiki link Data: the Nobel Foundation (CC0).