@jdavidhacker612 : I have a new paper with George Alter in Demography. "The Impact of Multiple Births on Fertility: Stopping and Spacing in the United States during the Demographic Transition." ow.ly/YWRn550TvoUE @ipums @minnpop #poweredbyIpums • TwiCopy

J. David Hacker

@jdavidhacker612

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Demographic Historian @UMN

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calendar_today29-08-2016 11:51:22

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J. David Hacker

@jdavidhacker612

a year ago

I have a new paper with George Alter in Demography. "The Impact of Multiple Births on Fertility: Stopping and Spacing in the United States during the Demographic Transition." ow.ly/YWRn50TvoUE IPUMS MPC #poweredbyIpums

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