Why is the market behavior of oligopolistic firms said to be mutually interdependent?

The market behavior of oligopolistic firms is considered mutually interdependent because the actions of one firm directly influence the decisions of its competitors. In an oligopoly, a small number of firms dominate the market, leading to strategic interactions where each firm must anticipate the reactions of others when setting prices, output levels, or introducing new products. This interdependence often results in behaviors such as price rigidity, collusion, or the use of non-price competition, as firms seek to maintain their market position while responding to their rivals' strategies.