Though economists have made substantial progress toward formulating theories of collusion in industrial cartels that account for a variety of fact patterns, important puzzles remain. Standard models of repeated interaction formalize the observation that cartels keep participants in line through...

Though economists have made substantial progress toward formulating theories of collusion in industrial cartels that account for a variety of fact patterns, important puzzles remain. Standard models of repeated interaction formalize the observation that cartels keep participants in line through...

<Para ID="Par1">We investigate the competitive effects of exchanges or sales of airport landing slots, using a model where airlines allocate their slot endowments across routes consistent with a Cournot–Nash equilibrium. With symmetric endowments, an increase in the number of slot-holding airlines raises...</para>

We show that monopoly is better than competition in term of social welfare for low frequency routes. Competition affects both flight schedules and airfares. Flight schedules get un-even interval by competition and this leads to large scheduling delay cost (SDC). The increment of SDC is large...