Structure verticale d'un réseau de distribution de drogues illicites et politique répressive optimale

<marquage typemarq="gras"/> This paper gives a theoretical base to the vertical structure of the distribution network of illicit drugs by using the analysis of vertical relationships and the illegal character of the drug traffic. The model is then used to show how the regulator, through law enforcement costs imposed on drugs sellers, can implement the optimal structure. We show that the vertically separated network, .first best optimal structure, a very often noticed structure on drugs market, can never be implementable.