| Industry | Concentration Ratio 2002 | Concentration Ratio 2017 |
|---|---|---|
| Newsprint Mills | 53.9% | 90.4% |
| Radio Networks | 53.8% | 83% |
| Ammunition (except Small Arms) Manufacturing | 52.9% | 82.8% |
| Luggage and Leather Goods Stores | 49.8% | 81.5% |
| Geothermal Electric Power Generation | 54.5% | 81.4% |
| Other Performing Arts Companies | 47.8% | 80.7% |
| Third Party Admin. of Insurance and Pension Funds | 14.2% | 78% |
| Taxi Service | 17.6% | 77.2% |
| Photofinishing Laboratories (except One-Hour) | 45.3% | 75.6% |
| Paint and Wallpaper Stores | 47.3% | 75.1% |
| Scheduled Passenger Air Transportation | 33.6% | 71.1% |
| Residential Electric Lighting Fixture Manufacturing | 30.2% | 71% |
| Nonscheduled Chartered Freight Air Transportation | 36.8% | 67.8% |
| Scale and Balance Manufacturing | 34.3% | 66.5% |
| Travel Trailer and Camper Manufacturing | 38% | 66.2% |
| Telecommunications Resellers | 25.3% | 59.9% |
| All Other Misc. Nonmetallic Mineral Product Manuf. | 29.7% | 55.6% |
| Professional Employer Organizations | 23.6% | 55% |
| Travel Agencies | 20.9% | 47.9% |
| Other Gasoline Stations | 19.2% | 47.1% |
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Source
Sources
Release date
June 2021
More information
Region
United States
Survey time period
2002 to 2017
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