World Population Growth J. Bradford DeLong delong@econ.berkeley.edu http://www.j-bradford-delong.net/ March 2001 Thirty years ago those fearful of the population explosion projected that population would reach 15 billion by 2050--if we didn't run out of food and suffer mass starvation beforehand. Today projections of human population in 2050 are much, much smaller: 9.3 billion. Birth rates have come down amazingly rapidly in much of the developing world. Slower rates of population growth will mean higher capital-output ratios, faster growth, and richer developing economies.

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