Over one million firms around the world have adopted a Quality Management System (QMS) that conforms to ISO 9001 … considered a signal of high quality for products or services in markets with large imported competition or firms competing in …

We develop a two-stage game in which competing airlines first choose the networks of markets to serve in the first … model using data from the domestic US airline market and find significant spillovers in entry. In a counterfactual exercise …, we evaluate the 2013 merger between Amer- ican Airlines and US Airways. Our results highlight that spillovers in entry …

infrastructure quality. Analyzing a model with reduced-form demand, we first show that deregulating an integrated monopoly cannot … simultaneously decrease the retail price and increase infrastructure quality. Second, we derive conditions under which reducing both … retail price and infrastructure quality relative to the integrated monopoly outcome increases welfare. Third, we argue that …