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Author: Peter Hull

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Journal article
Journal of Economic Perspectives:
A practical guide to shift-share instruments

A recent econometric literature shows two distinct paths for identification with shift-share instruments, leveraging either many exogenous shifts or exogenous shares. We present the core logic of both paths and practical...Read more...

Kirill Borusyak, Peter Hull and Xavier Jaravel

1 January 2025

Journal article
The Econometrics Journal:
Design-based identification with formula instruments: a review

Many studies in economics use instruments or treatments that combine a set of exogenous shocks with other predetermined variables via a known formula. Examples include shift-share instruments and measures of social or sp...Read more...

Kirill Borusyak, Peter Hull and Xavier Jaravel

1 January 2025

Journal article
AEA Papers and Proceedings :
Negative weights are no concern in design-based specifications

Recent work shows that popular partially linear regression specifications can put negative weights on some treatment effects, potentially producing incorrectly signed estimands. We show that this is not an issue in desig...Read more...

Kirill Borusyak and Peter Hull

1 May 2024

Journal article
Econometrica:
Non-random exposure to exogenous shocks

We develop a new approach to estimating the causal effects of treatments or instruments that combine multiple sources of variation according to a known formula. Examples include treatments capturing spillovers in social ...Read more...

Kirill Borusyak and Peter Hull

1 November 2023

Journal article
The Review of Economic Studies:
Quasi-experimental shift-share research designs

Many studies use shift-share (or ?Bartik?) instruments, which average a set of shocks with exposure share weights. We provide a new econometric framework for shift-share instrumental variable (SSIV) regressions in which ...Read more...

Kirill Borusyak, Peter Hull and Xavier Jaravel

8 June 2021