In the homogenous good case, the relationship between market structure and efficiency was studied extensively. Assuming a standard quadratic utility with quantity competition, this paper carries on the analysis in a differentiated good context. It can be shown that there is a positive...

In the homogenous good case the impact of a marginal cost variation on consumer surplus, industry profits and social surplus was studied in extensive manner. Assuming quantity competition and a standard quadratic utility this paper carries on this analysis in a differentiated good context. In...

This paper investigates the issue of the optimal tariff policy of the domestic country ("North") in an environment in which its trade with the foreign country ("South") is accompanied by a leakage of technological information (spillovers). Three duopoly games were considered. The first one views...

The paper applies the evolutionary concept to an analysis of the role of intellectual property rights protection in the model of two countries North and South (and two firms) where only the Northern firm conducts innovative activity. The concept of social evolution and learning in oligopolistic...

We compare a Bertrand with a Cournot duopoly in a setting where production is polluting and exploits natural resources, and firms bear convex production costs. We adopt Dastidar's (1995) approach, yielding a continuum of Bertrand-Nash equilibria ranging above marginal cost pricing also, to show...

This paper investigates the strategic effect of bundling when a multi-product firm producing two complements faces competition in both markets. I consider a demand structure where both Cournot and Bertrand competition can be evaluated. Bundling is completely ineffective when firms compete in...

We propose a model of investments prior to corporate ownership changes. We derive conditions under which the selling of a firm triggers overinvestment by both the seller and the buyer prior to the asset transfer. In a setting with Cournot competition, we show that these incentives can drive the...

With its resource availability and the prospect of climate friendly technology, coal continues to play an important role in the global energy sector. We develop a complementarity model of the international market for steam coal. We want to analyze the level of competition in this market which is...

With its resource availability and the prospect of climate friendly technology, coal continues to play an important role in the global energy sector. We develop a complementarity model of the international market for steam coal. We want to analyze the level of competition in this market which is...