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Labor markets and fertility : a demographically disaggregate model of U.S. postwar experience
Butz, William P.; Ward, Michael P. - 1979
Persistent link: https://www.econbiz.de/10000005572
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Countercyclical U.S. fertility and its implications
Butz, William P.; Ward, Michael P. - 1978
Persistent link: https://www.econbiz.de/10000005604
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The emergence of countercyclical U.S. fertility
Butz, William P.; Ward, Michael Paul - 1977
Persistent link: https://www.econbiz.de/10000001573
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The US scientific and technical workforce : improving data for decisionmaking
Kelly, Terrence K.; Butz, William P.; Carroll, Stephen J.; … - 2004
Persistent link: https://www.econbiz.de/10002348072