Supplementary data for: Labor Supply and Household Dynamics

This project provides evidence that understanding household decisions and evaluating welfare-related policies requires incorporating an intertemporal dimension into collective household models. Unlike static models, intertemporal collective models account for the fact that most households consist of more than one decision maker whose preferences and constraints evolve over time. Using data from the Panel Study of Income Dynamics (PSID), the paper documents that gender differences in labor supply—particularly before and after marriage—do not emerge abruptly at the time of marriage, but instead develop gradually over time.

本研究提供实证依据表明，理解家庭决策逻辑与评估福利相关政策，需将跨期维度纳入集体家庭模型（collective household models）。与静态模型不同，跨期集体家庭模型考虑到绝大多数家庭并非单一决策主体，其成员的偏好与约束条件会随时间动态演变。本文依托收入动态追踪调查（Panel Study of Income Dynamics，PSID）的数据，证实劳动供给的性别差异——尤其在婚前后——并非在婚姻缔结时突然显现，而是随时间逐步形成的。