Optimal Discounting
将代理人建模为当前自我，通过承担认知成本来共情未来自我，该模型统一了跨期选择中的实验和实证发现，并丰富了多重自我模型中的自我控制概念。
The agent is modeled as a current self that optimally incurs a cognitive cost of empathizing with future selves. The model unifies well‐known experimental and empirical findings in intertemporal choice and enriches the multiple selves model with a notion of self‐control. The defining feature of the model is magnitude‐decreasing impatience: greater patience toward larger rewards. Two behavioral definitions of magnitude‐decreasing impatience are provided and the model is characterized under each of them.