Macroeconomics: Imperfections, Institutions and PoliciesThe distinctive feature of this book is that it provides a unified framework for the analysis of short and medium run macroeconomics. This gives students a model that they can use themselves to understand a wide range of real world macroeconomic behavior and policy issues. The authors introduce a new graphical model (IS PC MR) based on the 3 equation New Keynesian model used in modern macroeconomics. The three equations are the IS curve, the Phillips