 He was Professor Emeritus of Economics and Finance, Graduate School of Business, The University of Chicago, and Research Associate, National Bureau of Economic Research (NBER).In 1939, he fled Poland to escape the Nazi invasion, but was imprisoned by the Soviet Russians and worked at a labor camp in Siberia.Zarnowitz earned his Ph.D. in economics (summa cum laude) at the University of Heidelberg in Germany in 1951.