We provide an efficiency justification for the imposition of the uniform pricing constraint in universal service obligations (USO), where USO are defined as a set of constraints imposed on firms belonging to a network industry. In addition to the uniform pricing (UP) constraint, which is an...

In this paper, we analyze the strategic function of gas storage focusing on how gas storage decisions impact competition between gas companies on both spot and downstream markets. Using a two-tier oligopolistic structure, we first show that gas storage is actually used strategically even in a...