In a market where firms with different characteristics decide upon both the level of emissions and their reports, we study the optimal audit policy for an enforcement agency whose objective is to minimize the level of emissions. We show that it is optimal to devote the resources primarily to the...

Compliance is an important issue in environmental regulation. In this paper, we discuss some of the key elements of the problem and analyze a situation where emissions are not random and firms are risk-neutral. We study the firm's decision on emissions and compliance when the environmental...

We analyze a model where firms chose a production technology which, together with some random event, determines the final emission level. We consider the coexistence of two alternative technologies: a "clean" technology, and a "dirty" technology. The environmental regulation is based on taxes...

This paper studies oligopolistic competition in off-patent pharmaceutical markets using a vertical product differentiation model. This model can explain the observation that countries with stronger regulations have smaller generic market shares. It can also explain the differences in observed...

Many governments in developing countries implement programs that aim to address nutrional failures in early childhood, yet credible evidence on the effectiveness of these interventions is scant. This paper evaluates the impact of a large-scale, government-run, food fortification program on child...

We address the question of how a third-party payer (e.g. an insurer) decides what providers to contract with. Two different mechanisms are studied and their properties compared. A first mechanism consists in the third party payer setting up a bargaining procedure with both providers. The second...

This paper provides empirical evidence on the explanatory factors affecting introductory prices of new pharmaceuticals in a heavily regulated and highly subsidized market. We collect a data set consisting of all new chemical entities launched in Spain between 1997 and 2005, and model launching...

In this paper we study the disability transition probabilities (as well as the mortality probabilities) due to concurrent factors to age such as income, gender and education. Although it is well known that aging and socioeconomic status influence the probability of causing functional disorders,...

Welfare is a rather vague term whose meaning depends on ideology, values and judgments. Material resources are just means to enhance peoples well-being, but growth of the Gross Domestic Production is still the standard measure of the success of a society. Fortunately, recent advances in...

Recently the Portuguese Government announced the launching of public private partnerships to build hospitals with the distinctive feature that both infrastructure construction and the clinical activities management will be awarded to a private party. Accordingly there appear coordination issues...