In a regional aviation market, the dominant carrier, Aerona, controls 85% of all scheduled takeoff slots and has invested millions in non-transferable local advertising campaigns and highly specific, non-reallocable terminal infrastructure. These immense sunk costs and slot constraints indicate that this market is likely to experience a very low level of:
contestability\text{contestability}contestability
market concentration\text{market concentration}market concentration
product differentiation\text{product differentiation}product differentiation
productive inefficiency\text{productive inefficiency}productive inefficiency
