Recent years have seen a surge of applied work using bunching approaches, a
development that is closely linked to the increased availability of administrative data. These …

We study a Chinese policy that awards substantial tax cuts to firms with R&D investment
over a threshold or “notch.” Quasi-experimental variation and administrative tax data show a …

We describe research on the impact of health insurance on healthcare spending (“moral
hazard”), and use this context to illustrate the value of and important complementarities …

Using a novel source of quasi-experimental variation in interest rates, we develop a new
approach to estimating the Elasticity of Intertemporal Substitution (EIS). In the UK, the …

We estimate demand for residential broadband using high‐frequency data from subscribers
facing a three‐part tariff. The three‐part tariff makes data usage during the billing cycle a …

This chapter reviews the recent developments in the bunching literature, both when
bunching appears in the outcome variable and when it appears in the treatment variable …

We explore how private drug plans set cost sharing in the context of Medicare Part D. While
publicly provided drug coverage typically involves uniform cost sharing across drugs, we …

The elasticity of taxable income is vital when predicting the effect of taxes. Bunching at
kinks/notches has been used to estimate this elasticity. We show that when the preference …

Medicare Part D enrollees face a complicated decision: they dynamically choose
prescription drug consumption in each period given difficult-to-find prices and a nonlinear …

This paper studies the bunching identification strategy for an elasticity parameter that
summarizes agents' responses to changes in slope (kink) or intercept (notch) of a schedule …