For example, in response to the arrival of the Boomer generation, which is proportionately
larger than the rest of the population, society invested heavily in: maternity wards as they arrived; elementary schools as they reached school age; colleges and universities as they approached adulthood; and new retirement models as Boomers approach 60 years of age.
For example, in addition to having higher levels
of genetic diversity,
populations in Africa tend to have lower amounts
of linkage disequilibrium
than do
populations outside Africa, partly because
of the
larger size
of human
populations in Africa over the course
of human history and partly because the number
of modern humans who left Africa to colonize the
rest of the world appears to have been relatively low (Gabriel et al. 2002).