Tiebout model
（重定向自Tiebout hypothesis）
The Tiebout model, also known as Tiebout sorting, Tiebout migration, or Tiebout hypothesis, is a positive political theory model first described by economist Charles Tiebout in his article "A Pure Theory of Local Expenditures" (1956). The essence of the model is that there is in fact a non-political solution to the free rider problem in local governance.