Ciarreta, Aitor, and Carlos Gutiérrez-Hita. 2013. “Collusion Sustainability With Optimal Punishments and Detection Lags, With an Application to a Cournot Game”. Estudios De Economía 40 (2):pp. 247-253. https://estudiosdeeconomia.uchile.cl/index.php/EDE/article/view/31033.