2018-2022 Generational Connectivity Index

This is a preview of the Generational Connectivity Index (GCI), a statistical tool to visualize potential interactions between people from different age groups, as a proportion of all possible interactions in the population.

This maps and dashboards preview explores the GCI using data from the 2018-2022 American Community Survey.

Lighter-colored areas on the map indicate that most potential interactions happen between people from different age groups.

Glossary

ACS: American Community Survey, a program that helps understand changes in demographic, economic, educational, and other aspects of people in the US territory.

All potential interactions: Count of the possible one-way interactions from one person to another. In this dashboard, all potential interactions are expressed as population size × (population size - 1).

Generational Connectivity Index (GII): A statistical tool that represents the chances that two randomly selected individuals who live in the same county/census tract come from different age groups. GII is based on potential interactions rather than actual friendships, family ties, or other network data whatsoever. GII is based on public data from ACS table B01001. GII is defined as 100% minus the following intra-group percentages:

  1. Score 17 years and younger %: Potential interactions between people 17 years and younger, expressed as a percentage from all potential interactions.
  2. Score 18-34 years old %: Potential interactions between people 17-34 years old, expressed as a percentage from all potential interactions.
  3. Score 35-64 years old %: Potential interactions between people 35-64 years old, expressed as a percentage from all potential interactions.
  4. Score 65 years and older %: Potential interactions between people 65 years and older, expressed as a percentage from all potential interactions.

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Representations and Warranties

Claude Pepper Center provides Maps and Dashboards “as is.” Claude Pepper Center does not represent or warrant that insights from our Maps and Dashboards are statistically significant, free of inaccuracies or errors, and/or representative of any population or territory whatsoever. Claude Pepper Center hereby disclaims any and all implied warranties, including without limitation, warranties of fitness for a particular purpose, merchantability, and non-infringement.

Suggested Citation

Claude Pepper Center (2024). 2018-2022 Generational Connectivity Index. Tallahassee: Florida State University. fsu.edu | archive.org

References

Manson, S., Schroeder, J., Van Riper, D., Knowles, K., Kugler, T., Roberts, F., & Ruggles, S. (2023). IPUMS National Historical Geographic Information System: Version 18.0 [dataset]. Minneapolis, MN: IPUMS. nhgis.org | archive.org

U.S. Census Bureau (2022, December 8). American Community Survey (ACS) 2018-2022 5-Year Data Release. Washington, DC: U.S. Department of Commerce. census.gov | archive.org

U.S. Census Bureau (2022). American Community Survey (ACS) 2022 ACS Table List. Washington, DC: U.S. Department of Commerce. census.gov | archive.org | census.gov | archive.org

U.S. Census Bureau (2022). Census Data API: Variables in /data/2022/acs/acs5/variables. Washington, DC: U.S. Department of Commerce. census.gov

U.S. Census Bureau (2023, January 1). TIGER/Line Shapefiles. Washington, DC: U.S. Department of Commerce. census.gov | archive.org