The Economics of Polygyny in Sub-Saharan Africa: Female Productivity and the Demand for Wives in Côte d'Ivoire
利用科特迪瓦家庭调查数据，构建妻子需求的结构模型，发现女性农业生产力越高（即“更便宜”），男性在财富不变时娶更多妻子，这解释了农业发展中一夫多妻制为何在科特迪瓦农村减少。
This paper makes the first attempt to link African polygny directly to the productivity of women in agriculture using micro data. The author develops a structural model of the demand for wives that disentangles wealth and substitution effects. Using a large household survey from the Ivory Coast, the author finds that marked geographic diversity in cropping patterns leads to regional variation in female labor productivity. The author also finds that, conditional on wealth, men do have more wives when women are more productive, that is, cheaper. This substitution effect may explain why polygyny declined in rural areas of the Ivory Coast during agricultural development. Copyright 1995 by University of Chicago Press.