Mobility Zones

10 Pages Posted: 26 May 2020

See all articles by Ferdinando Monte

Ferdinando Monte

Georgetown University - Robert Emmett McDonough School of Business

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Date Written: May 2020


This short note constructs Mobility Zones to facilitate the discussion on the geographic extent of individual mobility restrictions to control the spread of Covid-19. Mobility Zones are disjoint sets of counties where a given level of individual mobility directly or indirectly connects all counties within each set. I compute Mobility Zones for the United States and each state using smartphone-based mobility data between counties. The average area and population of Mobility Zones have slightly grown at the onset of the epidemic and have sharply shrunk afterward. Pre-Covid-19 Mobility Zones may be useful in calibrating quantitative studies of targeted restriction policies, or for policymakers deciding on the adoption of specific mobility measures. Two examples suggest the use of Mobility Zones to inform within-state differences and cross-state coordination in mobility restriction policies.

Suggested Citation

Monte, Ferdinando, Mobility Zones (May 2020). NBER Working Paper No. w27236, Available at SSRN:

Ferdinando Monte (Contact Author)

Georgetown University - Robert Emmett McDonough School of Business ( email )

3700 O Street, NW
Washington, DC 20057
United States

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