1 dataset available in Amesbury
The HHI Monopoly Index for Boston-Cambridge-Newton Metro Area, MA-NH, US
--HHI Dominance-- Near-monopoly positions in their local market. Businesses that mathematically "own" their local market (>30% share) with high HHI contribution of >900 within 1km. Safe, cash-flow-heavy bets that competitors can't easily dislodge.