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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: Q J Econ. 2017 Aug 2;133(1):407–455. doi: 10.1093/qje/qjx029

Figure II. Proximity Measures.

Figure II

Notes: Figure 2 plots proximity measures. Panel (A) represents distance from Macon County from the centroid of each SEA calculated using ArcGIS proximity tools. Panel (B) represents the fraction of black migrants from Alabama by SEA calculated using the 1940 census. Darker tones reflect closer proximity to Tuskegee or a higher fraction of Alabama migrants using 20 natural breaks. The white open circle in Panel (A) demarcates approximately 1000 kilometer radius from Macon County. The white closed circle in Panel (A) and black closed circle in Panel (B) represent Macon County.