[EN] This paper analyzes the effects of optimal taxation on a polluting monopolist who produces a durable good and cannot precommit to future sale prices. The government establishes the taxes that maximize social welfare, measured as the present value of the sum of consumer surplus plus...

In this paper the behavior of a tax-collecting government (a tax office) when imposing a quantity-tax to firms is analyzed along a two-period signaling model. Each taxpayer privately knows its technological attributes, while third parties—the tax office among them—have only a prior belief...

During the 1990s, household public services in Colombia went through an important reform: the entrance of the private sector was allowed and users could participate in the surveillance and control of these services. However, given the collective dimension and monopolistic character of most of...