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参照依赖的求职:来自匈牙利的证据*

Reference-Dependent Job Search: Evidence from Hungary*
Quarterly Journal of Economics · 2017 · Stefano DellaVigna、Attila Lindner、Balázs Reizer、Johannes F. Schmieder

中文摘要

我们提出了一个具有参照依赖偏好的求职模型,其中的损失厌恶以近期收入(即参照点)为基准。在该模型中,新近失业者因消费低于其参照点而努力求职。然而,随着时间的推移,他们逐渐习惯较低的收入,从而降低求职努力程度。当预期到待遇将被削减时,他们的求职努力程度会再次上升;一旦习惯了削减后的较低待遇水平,求职努力程度又会下降。即使不存在不可观测异质性,该模型也能拟合失业退出的典型模式。为区分该模型与其他模型,我们利用了失业保险(UI)待遇时间路径的一项独特改革。2005年,匈牙利将失业保险制度从单阶段制改为两阶段制,待遇的总体优厚程度保持不变。该制度使失业退出风险率在预期待遇削减时上升,尤其是在削减后上升,而这种变化模式难以用标准模型解释。我们估计了一个包含最优消费、内生求职努力程度和不可观测异质性的模型。参照依赖模型对失业退出风险率的拟合明显优于标准模型的若干合理版本,包括引入习惯形成的版本。我们的估计表明,参照点调整缓慢,且存在较强的不耐心,这可能反映了现时偏误。

Abstract

Abstract We propose a model of job search with reference-dependent preferences, with loss aversion relative to recent income (the reference point). In this model, newly unemployed individuals search hard since consumption is below their reference point. Over time, though, they get used to lower income and thus reduce their search effort. In anticipation of a benefit cut, their search effort rises again, then declines once they get accustomed to the lower postcut benefit level. The model fits the typical pattern of exit from unemployment, even with no unobserved heterogeneity. To distinguish between this and other models, we use a unique reform in the unemployment insurance (UI) benefit path. In 2005, Hungary switched from a single-step UI system to a two-step system, with overall generosity unchanged. The system generated increased hazard rates in anticipation of, and especially following, benefit cuts in ways the standard model has a hard time explaining. We estimate a model with optimal consumption, endogenous search effort, and unobserved heterogeneity. The reference-dependent model fits the hazard rates substantially better than plausible versions of the standard model, including habit formation. Our estimates indicate a slow-adjusting reference point and substantial impatience, likely reflecting present-bias.
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