Economic Opportunity Maps



Some potential points to spur discussion:

  • The distribution of physicians implies that the industry tends to cluster together in large numbers, but in only some counties.
  • Generally, higher shares of insured residents, regardless of private, Medicaid, or Medicare policy holders, lead to a higher likelihood of a county potentially having at least some physicians.

For the detailed journal article from which this map derives, see Van Sandt, Anders, Craig Wesley Carpenter, Scott Loveridge, Rebekka Dudensing, and Linda Niehm. 2021. “Revealing U.S. Retail Industries’ Functional Hierarchy Through Demand Thresholds.” Under review.

This project was supported by the Agricultural and Food Research Initiative Competitive Program of the USDA National Institute of Food and Agriculture (NIFA), award number 2017-67023-26242.


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