This article analyzes the financial equilibrium of the retirement system for public servants in Brazil. After defining the theoretical model, the strategy of analysis consists in the estimate for each public servant in the PNAD-IBGE, the necessary payroll tax to finance the expected benefits. It...

We study experimentally a standard four-player Hotelling game, with a uniform density of consumers and inelastic demand. The pure strategy Nash equilibrium configuration consists of two firms located at one quarter of the ``linear city'', and the other two at three quarters. We do not observe...