A Dynamic Model of Oligopoly in the Coffee Export Market
构建一个线性二次动态反馈寡头模型，估计巴西和哥伦比亚两大咖啡出口国的竞争程度和调整路径，发现其行为相对竞争，并比较了子博弈完美动态模型与标准静态及开环模型。
Abstract A linear‐quadratic, dynamic feedback oligopoly model that nests various market structures is used to estimate the degree of competitiveness and the adjustment paths of the two largest coffee exporters, Brazil and Colombia. Their estimated behavior is relatively competitive. This subgame perfect dynamic model is compared to a standard static oligopoly model and the open‐loop model (the dynamic generalization of the standard static model). Both classical and Bayesian tests of open‐loop and feedback dynamic models are reported.