Facebook Social Connectedness Index

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Source Facebook
Date of Dataset October 13, 2021-October 13, 2021
Updated 15 December 2021
Expected Update Frequency As needed

We use an anonymized snapshot of all active Facebook users and their friendship networks to measure the intensity of connectedness between locations. The Social Connectedness Index (SCI) is a measure of the social connectedness between different geographies. Specifically, it measures the relative probability that two individuals across two locations are friends with each other on Facebook.

Details on the underlying data and the construction of the index are provided in the “Facebook Social Connectedness Index - Data Notes.pdf” file. Please also see https://dataforgood.fb.com/ as well as the associated research paper “Social Connectedness: Measurement, Determinants and Effects,” published in the Journal of Economic Perspectives (https://www.aeaweb.org/articles?id=10.1257/jep.32.3.259).

Caveats / Comments

We do not provide older versions of the Social Connectedness Index as we do not recommend it being interpreted as a time series. The methodology for constructing SCI has changed over time (and continues to improve), and we do not backfill for previous dates.

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