There is no upper limit to the number of firms in anoligopoly. However, the number must be low enough that the actions of one firm significantly influence the others. Even though companies within oligopolies are competitors, they tend to cooperate with each other—either directly or indirectly—...
If the delays are uncertain due to the large number of firms, or the firms want to react to an average of past information rather than to sudden market changes, then continuously distributed delays are assumed. In the first case, differential–difference equations model the situation [10], ...
Theconcentration ratiomeasures the market share of the largest firms in an industry and is used to detect an oligopoly. There is no precise upper limit to the number of firms in an oligopoly, but the number must be low enough that the actions of one firm significantly influence the others. ...
We show that different measures of competition (number of firms, degree of product differentiation, Cournot vs. Bertrand) affect incentives to innovate in non-monotonic, different and potentially opposite ways.doi:10.1111/j.1467-9957.2009.02131.xPAUL BELLEFLAMME...
To this end, we compare two possibilities: free entry and second‐best number of firms (the one that maximizes social welfare). We show that with business‐stealing competition, free entry yields, in general, more firms than the socially optimal solution. In addition, we find that by the ...
a term used in bourgeois economics to designate a form of market structure in developed capitalist countries. Under oligopolistic conditions several large firms monopolize the bulk of production and marketing and conduct nonprice competition among themselves. The term “oligopoly” was introduced by the ...
In this paper it is shown that, provided the number of competitors is neither too small nor too large, the most restrictive output, i.e., the monopoly output, can be sustained as a perfect Nash equilibrium. If the number of firms is too small only sequences of the Nash equilibria of ...
The Big 4 audit firms have had it too easy While oligopolies and oligopsonies by themselves can lead to suboptimal outcomes, taken together--a situation economists call a bilateral oligopoly--each side's market power is tempered by the other, and the net result often approaches the efficient...
We analyse the impact of mergers in experimental Bertrand-Edgeworth oligopolies. Treatment variables are the number of firms (two, three) and the distribut... MA Fonseca,N Hans‐Theo - 《Economic Journal》 被引量: 105发表: 2008年 加载更多研究...
Next, we extend the model to the free entry case in which the number of firms in each market is determined at the zero profit condition endogenously. We then examine the optimality of entry fee and specify what an optimal entry fee should be in both markets under free entry. We show ...