Chapter 16 : game theory
Reflection : a firm’s profitability depends on the price of their own actions but also on the price of its competitor’s products. A firm’s innovation depends on whether its rivals are also innovating. Successful entry to industry depends on the response from the incumbent and so on. Strategy interactions are analyzed with techniques and insights from game theory. The prison’s dilemma. Nash equilibrium and Duopoly. The classical prison dilemma is to illustrate why strategically interdependence matters and to introduce the main concept and approach of game theory. We apply this approach into cournout and Bertrand duopoly models. We then illustrate the repetition could change matters, and in particular, how it ca facilitate to cooperate in situation where cooperation could be impossible in static setting.