The Cobb-Douglas Marriage Matching Function: Marriage Matching with Peer and Scale Effects
研究了美国各州婚姻率与人口规模的关系，提出柯布-道格拉斯婚姻匹配函数来解释这些关联，并用1990-2010年面板数据估计模型，发现规模效应不足以解释近期婚姻收益的大幅下降。
Across states, there is little correlation between a state’s marriage rate or cohabitation rate and own population. Within states, there is a positive (no) correlation between a state’s marriage (cohabitation) rate and its population growth rate. The Cobb-Douglas marriage matching function (CDMMF), which extends the Choo-Siow MMF to include peer effects, can rationalize these correlations. The model is easy to estimate. The CDMMF is estimated using panel data across US states from 1990 to 2010. The estimated model replicates the above scale effects. These effects are not sufficient to explain the large recent declines in the gains to marriage.