Education Demand and Age at School Enrollment in Tanzania
构建微观经济模型，利用坦桑尼亚1992-93年调查数据，分析实际入学年龄晚于法定年龄的原因，发现男女童入学模式存在根本差异，可能与家庭经济活动中学前培训的回报或早婚期望有关。
In Tanzania, actual school enrollment takes place 2 or 3 years later on average than the legal enrollment age. In this paper, we develop a micro-economic model that allows us to disentangle various explanations for such delays. We simultaneously estimate enrollment age and schooling duration by maximum likelihood techniques using data from the Human Resource Development Survey carried out in Tanzania in 1992-93. A particularly interesting result of our econometric analysis is that boys and girls follow fundamentally different patterns of schooling. Our model suggests that this could be due to different return from pre-school training in the family's economic activities or it could be related to the wish to have girls ready to be married as early as possible.