Projects E‑ZPass
Research in Transportation Economics · 2020

The impact of E‑ZPass

Jerzak & Libgober

Evidence that a transportation intervention can reshape electoral politics — highlighting the political consequences of infrastructure and policy feedback.

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Infrastructure Elections Policy feedback Causal inference
Summary

Infrastructure and electoral effects

E‑ZPass changed travel time and commuting patterns. This project studies downstream political effects, connecting infrastructure improvements to electoral outcomes.

Mechanisms

Behavioral change, time savings, and engagement.

Geography

Who benefits — and where — across space.

Causal design

Empirical strategies built for policy evaluation.
Figures

Visual summaries

E-ZPass adoption and turnout

High-level patterns

Mechanisms and robustness

Mechanisms and robustness

Placebo and sensitivity checks

Additional checks

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The PDF includes details on identification, data, and robustness checks.
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