An industry shifts from monopolistic competition to oligopoly. In what way will this change barriers to entry and the level of interdependence among firms?
- Abarriers to entry strengthen; interdependence between firms strengthen
- Bbarriers to entry strengthen; interdependence between firms weaken
- Cbarriers to entry weaken; interdependence between firms strengthen
- Dbarriers to entry weaken; interdependence between firms weaken