Polygyny, Fertility, and Savings
通过量化模型研究撒哈拉以南非洲的一夫多妻制，发现禁止该制度可降低生育率40%、提高储蓄70%和人均产出170%，对发展政策有参考价值。
Sub-Saharan Africa has a high incidence of polygyny. It is also the poorest region of the world. In this paper I ask whether banning polygyny could play any role for development. Using a quantitative model of polygyny, I find that enforcing monogamy lowers fertility, shrinks the spousal age gap, and reverses the direction of marriage payments. Polygyny leads to high bride-prices to "ration" women, which makes buying wives and selling daughters a good investment, thus crowding out investment in physical assets. For reasonable parameter values, I find that banning polygyny decreases fertility by 40 percent, increases savings by 70 percent, and increases output per capita by 170 percent.