text: Back at Minnesota , Hurwicz became chairman of the Statistics Department in 1961 , Regents Professor of Economics in 1969 , and Curtis L. Carlson Regents Professor of Economics in 1989 .
simplified: In the University of Minnesota in 1961 , Hurwicz became chairman of the Statistics Department , Regents Professor of Economics in 1969 , and Curtis L. Carlson Regents Professor of Economics in 1989 .