This paper provides estimates of price-marginal cost ratios for manufacturing and services sectors in the Eurozone, the US and Japan over the period 1970-2007. The estimates are obtained applying τhe methodology developed by Hall (1988) and extended by Roeger (1995) on the EU KLEMS March 2011...

It is usually believed that higher competition, implying more active firms, benefits consumers. We show that this may not be the case in an industry with asymmetric cost firms. A rise in the number of more cost inefficient firms makes the consumers worse-off in the presence of a welfare...

We study a symmetric free entry oligopoly in which firms produce differentiated goods so as to maximize their relative profits. The relative profit of each firm is the difference between its profit and the average of the profits of other firms. We show that whether firms determine their outputs...

We compare formulations of relative profit maximization in duopoly with differentiated goods, 1) (Difference case) maximization of the difference between the profit of one firm and that of the other firm, 2) (Ratio case) maximization of the ratio of the profit of one firm to the total profit. We...

We present a continuous-time generalization of the seminal R&D model of d’Aspremont and Jacquemin (American Economic Review, Vol. 78, No. 5) to examine the trade-off between the benefits of allowing firms to cooperate in R&D and the corresponding increased potential for product market...

Our paper considers a “negotiation game” between two players which combines the features of two-players alternating offers bargaining and repeated games. Generally, the negotiation game in general admits a large number of equilibriums but some of which involve delay and inefficiency. Thus,...

Entry of new firms can be difficult or even impossible at capacity constrained facilities, despite the actual cost of entering is low. Using a game theoretic model of incumbent firms’ pricing behaviour under these conditions, it is found that under the assumption of Bertrand competition and...

This paper deals with the issue of transparency in the pricing process for motor fuels, vis-à-vis the collusion charges between oil companies (for which no evidence is found) and the «myth» of «one» national price for motor fuels. Such an approach ignores both the competition between oil...

Mercury has been one of the most persistent cases in contemporary history of international market regulations and this in spite of its having been affected by important technological changes and the regular discovery of new deposits. This paper offers an approach to the least known period,...

The paper considers the line city model of spatial competition with the exogenous Stackelberg competition. With low transport costs, firms' equilibrium locations are in the center of the market. The leader profit is twice as big as the follower's profit, the price is minimum and the quantity is...