This paper explores the rationale of price-taking and price-making behaviours in the context of Walrasian and Cournotian pure exchange economies. Beside the influence of the number of agents, we underline the role of the structure of preferences. Through three equilibrium variations of the same...

We consider a competitive insurance market in which agents can privately enter into multicontractual insurance relationships and undertake hidden actions. We study the existence of linear equilibria when insurance companies do not have any restriction on their pricing rules. We provide...

This paper analyses the evolution of the bidding strategies of nuclear power plants on the Spanish day-ahead auction market, over the 11-year period from 2002 until December 2012. During that time the proportion of renewable energy especially wind and solar power increased dramatically. At the...

Despite the numerous researches about imperfect competition, the market power remains difficult to quantify using traditional economics methods. In this paper, we propose an experimental economics design and outline some ways of analysis of its results toward characterization of the use of...

In international emissions trading schemes such as the Kyoto Protocol and the European Union Emissions Trading Scheme, the suboptimal negotiation of the cap with respect to total pollution minimization leads us to critically examine the proposition that generous allocation of grandfathered...

Stemming from politically given market imperfections in a tradable permits system, this paper develops a Stackelberg game with two types of non-cooperative agents to describe how a large -potentially dominant- agent may exercise market power at the expense of a competitive fringe. In a dynamic...

We try in this paper to characterize the state of mobile phone market in Tunisia. Our study is based on a survey of foreign experience (Europe) in detecting collusive behavior and a comparison of the critical threshold of collusion between operators in developing countries like Tunisia. The...

This paper presents evidence from three French VAT reforms showing that tax shifting on prices operates differently upwards and downwards. This may appear as a paradox when reading usual studies on price shifting. This paper puts forward two different asymmetric effects. The first one is linked...

The point of this paper is to measure empirically the distribution of the commodity tax burden between consumers and producers. For that purpose, two French reforms are studied. These reforms are steep decreases of the VAT rate on housing repair services on the one hand, and on new car sales on...