Copyright vs. Patents
Copyright: Digital
Patents: Physical
Market Share Calculation
Firm Sales / Market Total Sales
| Firms | Sales (Billions of Dollars) |
|---|---|
| A | 1000 |
| B | 2000 |
| C | 500 |
| D | 500 |
| HHI < 100: Monopoly |
1000 < HHI < 10000: Oligopoly
Copyright: Digital
Patents: Physical
Firm Sales / Market Total Sales
| Firms | Sales (Billions of Dollars) |
|---|---|
| A | 1000 |
| B | 2000 |
| C | 500 |
| D | 500 |
| HHI < 100: Monopoly |
1000 < HHI < 10000: Oligopoly