Hurwicz was given a job by Walter Heller at the University of Minnesota in 1951, where he became a professor of economics and mathematics in the School of Business Administration. Most of his work for the rest of his life was in Minnesota, but he studied and was a teacher elsewhere in the United States and Asia. In 1955 and again in 1958 Hurwicz was a visiting professor, and a fellow on the second visit, at Stanford University and there in 1959 he published "Optimality and Informational Efficiency in Resource Allocation Processes" on making rules for buyers and sellers and governments share wealth. He taught at Bangalore University in 1965 and, during the 1980s, at Tokyo University, People's University (now Renmin University of China) and the University of Indonesia. In the United States he was a visiting professor at Harvard in 1969, at the University of California, Berkeley in 1976, at Northwestern University twice in 1988 and 1989, at the University of California, Santa Barbara in 1998, the California Institute of Technology in 1999 and the University of Michigan in 2002. He was a visiting Distinguished Professor at the University of Illinois in 2001.