Do you have time to take a walk together? Private and joint time within the household
构建了一个区分伴侣共同休闲与私人休闲的家庭内部时间与消费分配理论模型，利用时间使用数据估计发现，共同休闲与私人休闲不可完全替代，且女性工资上升会增加其育儿时间但减少男性育儿时间。
Abstract We develop a theoretical model for the intra-household allocation of time and consumption that distinguishes between partners’ joint and private leisure. Estimating the model using time-use data leads to five findings. First, the intra-household expenditure distribution correlates with relative wages, consistent with the collective model. Second, men put relatively more weight on private expenditure and composite leisure. Third, joint and private leisure are imperfect substitutes. Fourth, joint and private leisure are independent of the wage distribution, suggesting that togetherness does not substitute for economic factors. Fifth, higher female wages imply higher childcare hours for women, but lower for men.