(1/2) James J. Heckman - Born April 19, 1944 in Chicago, Illinois, U.S.A. Earned a Ph.D. in Economics from Princeton University. He is currently associated with the University of Chicago. Won the Nobel Economics prize for his development of theory and methods for analyzing selective samples. (1/2) Daniel L. McFadden - Born July 29, 1937 in Releigh, North Carolina, U.S.A. Earned a Ph.D. in Behavioral Science from University of Minnesota in 1962. He is currently associated with the University of California in Berkeley. Won the Nobel Economics prize for his development of theory and methods for analyzing selective samples.