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Natural Selection and the Origin of Economic Growth

Quarterly Journal of Economics 2002 117(4), 1133-1191 open access
This research develops an evolutionary growth theory that captures the interplay between the evolution of mankind and economic growth since the emergence of the human species. This uni…ed theory encompasses the observed evolution of population, technology and income per capita in the long transition from an epoch of Malthusian stagnation to sustained economic growth. The theory suggests that prolonged economic stagnation prior to the transition to sustained growth stimulated natural selection that shaped the evolution of the human species, whereas the evolution of the human species was the origin of the take-o¤ from an epoch of stagnation to sustained growth. – Growth ; Technological Progress ; Fertility ; Human Capital ; Evolution ; Natural Selection ; Malthusian Stagnation

Ability-Biased Technological Transition, Wage Inequality, and Economic Growth

Quarterly Journal of Economics 2000 115(2), 469-497
This paper develops a growth model characterized by ability-biased technological transition in which the evolution of technology, education attainment, and wage inequality is consistent with the observed pattern in the United States and other advanced countries over the past several decades. It argues that an increase in the rate of technological progress raises the return to ability and simultaneously generates an increase in wage inequality between and within groups of skilled and unskilled workers, an increase in average wages of skilled workers, a temporary decline in average wages of unskilled workers, an increase in education, and a productivity transitory slowdown.