Nowadays, there is an interesting discussion about the utility of keeping the taxes on heritage in modern fiscal systems. Nevertheless this controversy has not been properly reflected yet in the acedemic research and there is not enough investigation into the reasons that justify their existence...

We study the problem of minimizing the maximum latency of flows in networks with congestion. We show that this problem is NP-hard, even when all arc latency functions are linear and there is a single source and sink. Still, one can prove that an optimal flow and an equilibrium flow share a...