MFG Calcs

Sourcing Diversification Tracker

The Herfindahl-Hirschman Index (HHI) of import-source concentration for every U.S. manufacturing family, its 2018 base versus latest reading, and a

Page focus

  • See how concentrated each U.S. manufacturing family's foreign sourcing is and which way it moved since 2018, by the Herfindahl index.
  • Primary keyword: sourcing concentration by family

Related manufacturing topics

  • import concentration index
  • supply chain concentration
  • herfindahl index sourcing
  • which imports are most concentrated

Last reviewed 2026-05-12.