The book The Phillips Curve at 50: Macroeconomic Stability and Its Costs examines the role of the Phillips Curve in analyses of macroeconomic stability over the past fifty years, addressing its theoretical and empirical dimensions. Phillips's 1958 study, which revealed an inverse relationship between unemployment and wage growth, is now considered one of the most important models in economic literature, illustrating the trade-off between inflation and unemployment. The book discusses the role of the Phillips curve in forecasting inflation, its contribution to the development of expectation mechanisms, and its importance in determining the costs of policies aimed at achieving price stability.