期刊名称：CORE Discussion Papers / Center for Operations Research and Econometrics (UCL), Louvain
出版年度：2012
卷号：2012
期号：1
出版社：Center for Operations Research and Econometrics (UCL), Louvain
摘要：Parenthood postponement is a key demographic trend of the last three decades. In
order to r ationalize that stylized fact, we extend the canonical model by Barro and
Becker (1989) to include two - instead of one - reproduction periods. We examine
how the cost structure of early and late children in terms of time and goods affects
the optimal fertility timing. Then, focusing a stationary equilibrium with stationary
population, we provide two alternative explanations for the observed postponement
of births: (1) a fall of the direct cost of late children (thanks to medical advances);
(2) a rise in ho urly productivity, which increases the (relative) opportunity costs of
early children in comparison to late children.
关键词：Keywords: fertility, birth timing, population, dynastic altruism, OLG model .
