Thomas Sargent of New York University and Christopher Sims win the Nobel Prize in Economics for 2011. Sargent, a professor at New York University, is best known for his work on "rational expectations theory, " which points out that people base their actions on their expectations about the impact of government policies in the future. The implications for today are that monetary policy by lowering rates cannnot permanently lower unemployment, as people will expect higher future inflation and insist on higher wages for labor and higher interest rates for capital. Sargent did most of the signifcant work on the theory of rational expectations at the University of Minnesota from 1971 to 1987. Sims work is in statistical relationships and use of vector autoregressions to study the economy. He taught at the University of Minnesota from 1974 to 1990.