Under quadratic transportation costs, the existence of the sequential first-locate-thenprice equilibrium in spatial competition is well known in the literature. In this paper, we find that the equilibrium may fail to exist under certain restrictions with respect to the location of firms and...

Concavity of transportation costs has been rarely considered in the linear model of product differentiation, although it seems a reasonable assumption in many contexts. In this paper, we extend the results by Gabszewicz and Thisse (1986) about the existence of the sequential...

We investigate the features of optimal environmental policies composed of pollution standards and costly inspection processes, where fines for exceeding the standards depend both on the degree of transgression and the environmental technology that the firm uses to reduce the social impact of its...

We investigate the features of optimal regulatory policies composed of pollution standards and probabilities of inspection, where fines for non-compliance depend not only on the degree of violation but alson on nongravity factors.We show that optimal policies can induce either compliance or...

We study optimal policies composed of pollution standards, probabilities of inspection and fines dependant on the degree of noncompliance with the standards, in a context where regulated firms own private information.In contrast with previous literature, we show that optimal policies, being...

Many conservation programs offer financial compensation to farmers in exchange for socially desired services, such as soil conservation or biodiversity protection. Realization of the conservation objective at minimum cost requires payments to just cover the extra costs incurred by each...

This article considers a model of spatial competition where firms and consumers are located in a semicircular space rather than in the whole circle (Salop's model) or the linear city (Hotelling's model), under the assumptions of both, convex and concave, transportation costs. The paper tries to...