1 dataset available in East St. Louis
The HHI Monopoly Index for St. Louis Metro Area, MO-IL, 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.