money growth leads to higher inflation and higher unemployment, so the long-run Phillips curve is not vertical. The optimal … monetary growth rate decreases with the workers' bargaining power, the level of unemployment benefits and the payroll tax rate …. -- inflation ; unemployment ; search-matching ; Friedman rule …

empirical regularities that the conventional matching model cannot. -- Matching ; incentives ; adjustment costs ; unemployment …

suggest that a more progressive tax schedule reduces the unemployment rate and increases the employment rate. These findings …

We propose a canonical model of optimal nonlinear redistributive taxation with matching unemployment. In our model … efficient values, at the optimum gross wages and unemployment are lower. Average tax rates are moreover increasing in wages. The … robustness of these properties is also discussed. -- Optimal income taxation ; unemployment ; matching …