Eric Stark Maskin ( born December 12 , 1950 ) is an American economist who won a Nobel prize with Leonid Hurwicz and Roger Myerson , for economics in 2007 . Eric Stark Maskin ( born December 12 , 1950 ) is an American economist and Nobel laureate recognized with Leonid Hurwicz and Roger Myerson `` for having laid the foundations of mechanism design theory . ''