This paper empirically analyses the hypothesis of the existence of a dual market for contracts in local services. Large firms that operate on a national basis control the contracts for delivery in the most populated and/or urban municipalities, whereas small firms that operate at a local level...

Network airlines have increasingly focused their operations on hub airports through the exploitation of connecting traffic. This has allowed them to take advantage of economies of traffic density, the existence of which is beyond dispute in the airline industry. Less attention has been devoted...

The efficiency-equity dilemma, in conjunction with political partisan interests, has received increasing attention in attempts to explain the territorial allocation of investment. However, centralization policies that seek to introduce or reinforce the hierarchization of the political system...