the world copper market, from at least 1991 until earlier this year. This manipulation has concentrated attention on the … manipulation is not illegal under UK financial services regulation, but that in any case, deterrence is better than prosecution …. Manipulation will be best deterred by greater transparency, in particular through mandatory reporting of client positions to …

through both productive effort and costly manipulation, and may undo the contract by privately saving. The optimal contract …

highlight the deficiencies in the current formal theory of collusion. The Sugar Institute did not fix prices or output. Prices …

corresponding to different nexi of collusion between the principal and/or the experts. …

The impact of demand growth on the collusion possibilities is investigated in a Cournot supergame where market growth …' available. It is shown that even in situations where perfect collusion can be sustained after entry, coping with a potential …

-antitrust forms of collusion, such as collusion between auditors and management, and more generally to corporate and organized crime. …

efficient mechanism to implement collusion among merchants and rulers, building on the natural complementarity between merchants …

This model describes the working of hub-and-spoke collusion that has been discussed recently by competition policy … authorities. We develop a model of tacit collusion between a manufacturer and two retailers, competing a la Rotemberg and Saloner … retailers reach a more efficient collusive equilibrium. The hub and spoke conspiracy reduces double marginalization, but raises …