Mobility and Engagement Index
The Dallas Fed Mobility and Engagement Index (MEI) summarizes the information in seven different variables based on geolocation data collected from a large sample of mobile devices to gain insight into the economic impact of the pandemic. The MEI measures the deviation from normal mobility behaviors induced by COVID-19.
Learn more about the MEI and the methodology behind it.
MEI data is updated every Wednesday by noon CT.
Census Region Data
MSA DataDownload the zip file with all files included.
NOTE: On Dec. 23, 2020, the MEI methodology was revised, altering the national, region, state and MSA data. Under the previous methodology, the county-level MEI series were aggregated with weights based on the number of observed cell devices in that county. Under the new methodology, the aggregation weights are based on the 2019 county population. This had a negligible effect over January through April. Over May through November, the national MEI was revised down by an average of 1.4. The week ended Dec. 12, the national MEI was revised down 3 points to -42.5.
About the Data Files
The underlying data is provided by SafeGraph.
The national series is aggregated from county-level data with device counts as weights. Similar for the states. In the county files, the county name is in the first row, with FIPS code in the variable name. MSA data are for metro statistical areas (MSA), aggregated from county data using the March 2020 crosswalk found here. MSA names are in the first row, and CBSA codes in the variable name.
The index is scaled so that the average of January-February is zero, and the lowest weekly value (week ended April 11) is -100.
File names including 'weekly' are averages of the daily data. The data corresponds to the last day of the calendar week.
For details on the methodology behind the MEI, see “Mobility and Engagement Following the SARS-Cov-2 Outbreak,” Tyler Atkinson, Jim Dolmas, Christoffer Koch, Evan Koenig, Karel Mertens, Anthony Murphy and Kei-Mu Yi, Federal Reserve Bank of Dallas, Research Department Working Paper No. 2014, May 2020.
The MEI was developed by Tyler Atkinson, business economist; Jim Dolmas, senior research economist; Christoffer Koch, senior research economist; Evan Koenig, senior vice president; Karel Mertens, senior economic policy advisor; Anthony Murphy, senior economic policy advisor; and Kei-Mu Yi, senior vice president at the Federal Reserve Bank of Dallas.