factor potentially leading to collusion. We show that forbidding mergers leading to symmetric market structures can induce … mergers leading to asymmetric market structures with higher risk of collusion, when firms face indivisible costs of collusion …) firm benefits sufficiently more from collusion when industry asymmetries increase, collusion can become more likely when …

We use a dynamic oligopoly model of entry and exit with store-type differentiation to evaluate how entry regulations …