David LamDirector, Institute for Social Research, Professor of Economics, Research Professor, Population Studies Center, University of Michigan
Director, Institute for Social Research, Professor of Economics, Research Professor, Population Studies Center, University of Michigan
The world’s next 4 billion people will differ from the previous 4 billion
Quatre milliards de personnes en plus. Mais différentes
David Lam

When the world population reached 7 billion in 2011, it marked the amazing addition of 4 billion people in just over 50 years, the world having attained the 3 billion milestone in 1960.
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