JUE Insight: Difference-in-differences with geocoded microdata

Kyle Butts

Journal of Urban Economics, 2023, vol. 133, issue C

Abstract: I formalize a commonly-used estimator for the effects of spatially-targeted treatment with geocoded microdata. This estimator compares units immediately next to treatment to units slightly further away. I introduce intuitive identifying assumptions for the average treatment effect among affected units and illustrate problems when these assumptions fail. I propose a new method that allows for nonparametric estimation following methods introduced in Cattaneo et al.(2019b) that allows estimation without requiring knowledge of exactly how far treatment effects are experienced. Since treatment effects can change with distance, the proposed estimator improves estimation by estimating a treatment effect curve.

Keywords: Spatial econometrics; Spillover effects; Difference-in-differences; Nonparametric estimation (search for similar items in EconPapers)
JEL-codes: C13 C14 C18 (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:juecon:v:133:y:2023:i:c:s0094119022000705

DOI: 10.1016/j.jue.2022.103493

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