This paper performs a welfare analysis of economies with private information when public information is endogenously generated and agents can condition on noisy public statistics in the rational expectations tradition. We find that equilibrium is not (restricted) efficient even when feasible...

cover -- Contents -- Series Foreword -- Preface -- Introduction -- A Simple Model of Unemployment and Inflation Dynamics -- Unemployment, the Output Gap, and the Welfare Costs of Economic Fluctuations -- Unemployment and Monetary Policy Design in the New Keynesian Model -- Concluding Remarks and...