When we look at the few countries for which we have long historical records, do the ones that become much more developed also acquire much more X? If we look for countries that switch from a regime of slow economic development to a regime of rapid development, do we see a parallel shift in the rate of growth of change in X? References External links lantpritchett.org (personal website) . . . Ending Global Apartheid 2008 interview in Reason 1959 births Economists from Idaho Brigham Young University alumni Harvard Kennedy School faculty Living people MIT School of Humanities, Arts, and Social Sciences alumni American Mormon missionaries in Argentina People from Boise, Idaho Latter Day Saints from Massachusetts 20th-century Mormon missionaries Education economists Latter Day Saints from Idaho Center for Global Development 20th-century American economists 21st-century American economists Migration economists