引入 TANF 福利后，单身母亲的劳动力供给曲线_____，社会效率_____。

Question

BlackTom AI · Accepted Answer

题干要点：在引入 TANF 福利后，单身母亲的劳动力供给曲线会如何移动，以及社会效率如何。
选项只有一个：向左移动;减少。
- 关于劳动力供给曲线向左移动的理由：TANF 提供现金援助并设有就工作要求和时限等条件，这会提高对工作的隐性税（边际折现效应）以及福利的替代效应。部分单身母亲在福利与工资之间的权衡中，若福利在工作后迅速减弱或逐步取消，可能会抑制寻工意愿，导致愿意工作的劳动供给减少，从而使劳动供给曲线左移。
- 关于社会效率减少的理由：如果单身母亲因为福利制度的设计而减少劳动参与，整体经济的生产潜力可能下降，资源配置偏离最优点，产生死重损失。此外，福利制度的激励结构若使得边际成本高于边际收益，社会福利水平也会下降，体现为社会效率的下降。
- 对于为什么不是向右移动、也不是社会效率上升的解释：向右移动通常需要福利制度鼓励更多工作参与或降低边际成本的激励，但 TANF 的结构性要素（如福利削减和期限）常会在一定程度上抑制工作激励，因此不太支持向右移动的结论。
- 结论性指向：综合来看，在若干分析中，TANF 可能对单身母亲的劳动供给产生抑制效应，且由于福利设计引发的激励与替代效应组合，社会效率也可能下降。由于题目选项只有一个，我们据此评估该选项的逻辑一致性。

AS.440.661.50.SP25 Module 2 Problem Set

引入 TANF 福利后，单身母亲的劳动力供给曲线_，社会效率_。

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AS.440.661.50.SP25 Module 2 Problem Set

引入 TANF 福利后，单身母亲的劳动力供给曲线_____，社会效率_____。

查看解析

登录即可查看完整答案

类似问题

For the case above, how will the reduction in immigration affect the real wage?

In the two-period model with investment, we are confident that the labor supply curve is upward sloping at any wage level because we are making which of the following assumptions:

Consider the labor-leisure choice model. Which of the following is a correct statement about the Marshallian demands:

Which of the following is an observed unintended consequence of the Family Tax Benefits in some countries mentioned in the lecture?

In the two-period model with investment, we are confident that the labor supply curve is upward sloping at any wage level because we are making which of the following assumptions:

Consider the labor-leisure choice model. Which of the following is a correct statement about the Marshallian demands:

Other things being equal, a _____________ supply of workers tends to _________ real wages.

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希望你的学习变得更简单

引入 TANF 福利后，单身母亲的劳动力供给曲线_，社会效率_。

Other things being equal, a _____ supply of workers tends to _ real wages.