%0 Journal Article %A Castro Cantalejo, Javier %A Gómez González, Daniel %A Tejada Cazorla, Juan Antonio %T A polynomial rule for the problem of sharing delay costs in PERT networks %D 2008 %@ 0305-0548 %U https://hdl.handle.net/20.500.14352/50061 %X In this paper we define the weighted serial cost sharing rule for the cost allocation problem.We apply this new rule to the problem of sharing delay costs in a PERT network. This rule belongs to the Core and is the Weighted Shapley Value for a particular game. Furthermore, we present a characterization of this rule and a polynomial algorithm for its calculation. %~