Two rationality arguments are used to justify the link between conditional and unconditional preferences in decision theory: dynamic consistency and consequentialism. Dynamic consistency requires that ex ante contingent choices are respected by updated preferences. Consequentialism states that...

Previous research has argued that, in the mature phase of competition,telecommunications networks may use access charges as an instrument of collusion. Weshow that this result depends totally on the assumption of linear pricing. Though undernonlinear pricing, the access charge alters the way...