Low cost carriers' (LCCs) pricing system is characterized by a single class of booking that starts with a minimum fare and then monotonically increases its value over time. This is a form of discriminating prices although markets are not physically or temporal separated. Using game theory...

Theoretical standard models and regulatory actions often ignore that firms are competing with other firms in related markets. In these contexts, cross-price relationships should be taken into account. The usual instinct with multiproduct firms would be to use Ramsey prices to find optimal...