The '''probabilistic voting theory''', also known as the '''probabilistic voting model''', is a [[voting theory]] developed by professor [[PeterMelvin J. CoughlinHinich]], 1992, which has gradually replaced the [[median voter theory]], thanks to its ability to find an equilibrium in a multi-dimensional space. This theory represents a break-through in [[political economy]] literature and can be used to solve problems that were impossible to solve before. In fact, unlike the [[median voter theorem]], what drives the equilibrium policy is both the numerosity and the density of social groups and not the median position of voters on a preference scale. This difference explains why social groups which have a great homogeneity of preferences are more politically powerful than those whose preferences are dispersed.
