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【财政学文献研讨会】第五十六期

时间:2019-03-12

论文题目:Poverty and Self-control (Bernheim, B. D. , Ray, D. , & Yeltekin,S.,Econometrica,2015, 83(5):1877-1911.)

时 间:2019年3月15日 星期五 12:00 – 13:30

地 点:明德主楼610

主 讲:魏宁 中国人民大学2018级财政学硕博连读生

摘 要:The absence of self-control is often viewed as an important correlate of persistent poverty. Usinga standard intertemporal allocation problem with credit constraints faced by an individual with quasi-hyperbolic preferences, we argue that poverty damages the ability to exercise self-control.Our theory invokes George Ainslie’s notion of “personal rules,” interpreted as subgame-perfect equilibria of an intrapersonal game played by a time-inconsistent decision maker. Our main result pertains to situations in which the individual is neither so patient that accumulation is possible from every asset level, nor so impatient that decumulation is unavoidable from every asset level. Such cases always possess a threshold level of assets above which personal rules support unbounded accumulation, and a second threshold level of assets below which there is a “poverty trap”: no personal rule permits the individual to avoid depleting all liquid wealth. In short, poverty perpetuates itself by undermining the ability to exercise self-control. Thus policies designed to help the poor accumulate assets may be highly effective, even if they are temporary. We also explore the implications for saving with easier access to credit, the demand for commitment devices, the design of accounts to promote saving, and the variation of the marginal propensity to consume across classes of resource claims.

主持人:刘晓路 副教授

财政学文献研讨会是由中国人民大学财政金融学院财政系主办,由财政系在读研究生剖析财政学经典或前沿文献,并对财政领域热点问题形成理论思考和系统看法。研讨会主题主要包括:政府行为、财政体制、税收体制及宏观经济等。

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