We introduce a method for estimating the cost of adjusting earnings, as well as the earnings elasticity with respect to the net-of-tax share. Our method uses information on bunching in the earnings distribution at convex budget set kinks before and after policy-induced changes in the magnitude of the kinks: the larger is the adjustment cost, the smaller is the absolute change in bunching from before to after the policy change. In the context of the Social Security Earnings Test, our results demonstrate that the short-run impact of changes in the effective marginal tax rate can be substantially attenuated.

中文翻译：

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使用非线性预算集估计调整摩擦：收益测试的方法和证据

我们引入了一种估计调整收益成本的方法，以及与税后份额相关的收益弹性。我们的方法使用了政策引起的扭结幅度变化前后凸预算集扭结的收益分布中的聚束信息：调整成本越大，政策前后聚束的绝对变化越小改变。在社会保障收入测试的背景下，我们的结果表明，有效边际税率变化的短期影响可以大大减弱。