In several countries, healthcare services are provided by public and/or private subjects, and they are reimbursed by the Government, on the basis of regulated prices. Thus, providers take prices as given and compete on quality to attract patients. In some countries, regulated prices differ...

Defining the welfare state is not a simpleminded task. Actually, there are numerous definitions which try to reflect at least some of the basic characteristics of the welfare state or its objectives and its functions. For some, there is primarily an institutional parameter, for others there are...

We use the same methodology, that Ecofin-Oecd apply for projecting expenditure in the medium-long term, to reconstruct expenditure in the medium-long past. It is possible to compare the effective expenditure with the reconstructed one. The effective expenditure is of course influenced by policy...

This article proposes a differential-game model, in order to analyze markets in which regional regulation is operative and competition is based on quality. The case we have in mind is healthcare public service, where consumers (patients) choose the provider mainly basing on the providers'...

We propose a general model of imperfect competition among multi-productfirms, the consumption of whose goods yields externalities from oneconsumer to another. We extend the allocation approach of Weyl (2010)'smonopoly model, proposing a solution concept, Insulated Equilibrium,that allows for...

We discuss optimal privatization policies in mixed oligopolies in which a public firm is the Stackelberg follower (private leadership). We find that under constant marginal cost, the optimal degree of privatization is zero. When the marginal cost is increasing, however, the optimal degree is...

This study formulates a new model of mixed oligopolies in free entry markets. A state-owned public enterprise is established before the game, private enterprises enter the market, and then the government chooses the degree of privatization of the public enterprise (termed the...

This paper investigates price and quality competition in a mixed duopoly market, where a state-owned welfare-maximizing public firm competes against a profit-maximizing private firm. We use a differential game approach with a Hotelling spatial competition framework. We extend Cellini et...

We investigate mixed markets in which a social welfare-maximizing public firm and a private firm engage in behavior-based price discrimination. We consider two cases: one where the private firm is completely owned by domestic shareholders and one where it is completely owned by foreign...

We examine the supply function equilibrium (SFE), which is often used in the analysis of multi-unit auctions such as wholesale electricity markets, among (partially) public firms. In a general model, we characterize the SFE of such firms and examine the properties of symmetric SFE. We show,...