Interdependence on each other and cartels are characteristics of firms in what kind of market structure?

Interdependence among firms and the presence of cartels are characteristics of an oligopolistic market structure. In this type of market, a few large firms dominate the market, and their pricing and output decisions are closely linked, leading to strategic behavior. Cartels often form to coordinate actions and maximize collective profits, which can limit competition. Overall, oligopolies exhibit a high degree of interdependence, influencing each other's strategies and market outcomes.