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. 2020 Dec 14;193:104345. doi: 10.1016/j.jpubeco.2020.104345

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Fig. 2 — Geography of Socioeconomic Status and Change in Search Intensity. Notes: The figure above maps Designated Market Areas (DMA) across the nation. Panel A sorts DMAs into quartiles of socioeconomic status, which is defined as the first principal component of: mean household income; median household income fraction of adults with a four-year college degree; fraction of households with a computer; and fraction of households with broadband access. Panel B sorts DMAs into quartiles of post-Covid changes in search intensity for school-centered resources, defined as the difference in the logarithm of search intensity between April-May 2020 and April-May of 2015–19.