Dos Santos Ferreira, Rodolphe <br/><br/>
War and Peace 

 -  2004.<br/>							 
<br/><br/> 59 
<br/><br/> Cournot develops a notion of competition with two essential characteristics: producers’ non-cooperation and their coordination on a common price. Edgeworth adopts a cooperative approach while referring to another duality, recontracting and contract, which he associates with the antinomy war-peace. Both agree however to see in perfect competition no more than a limit case, where agents become insignificant. Jevons, by contrast, makes perfect competition into a rule extending to bilateral exchange, by carrying to the extreme the Cournotian principle of coordination on a common price, seen as non-manipulable. Walras takes over the same point of view, even if he acknowledges in competition the nature of a contest, although only during the “tâtonnement”. Bertrand and Launhardt magnify on the contrary the warlike dimension of competition, conceived as a struggle for market share.Classification JEL: B13, D41, D43, L10