Nobel Laureate: Trygve Haavelmo

Abstract

Trygve Haavelmo was in the United States from 1939 to 1947, and in this period he published most of his path-breaking contributions to econometrics for which the Nobel committee awarded him the prize. His list of publications after 1947 contains more than 100 items. We review his contributions to econometrics only briefly in order to cover his other research, which has focused on the relationship between population, natural resources, and growth; investment and capital theory; the notion of equilibrium and disequilibrium; the nature and stability of preferences; and the nature and problems of democracy.