The Canadian Phillips Curve and Regime Shifting Staff Working Paper 2003-32 Frédérick Demers Phillips curves are generally estimated under the assumption of linearity and parameter constancy. Linear models of inflation, however, have recently been criticized for their poor forecasting performance. Content Type(s): Staff research, Staff working papers Topic(s): Econometric and statistical methods, Inflation and prices JEL Code(s): C, C5, C52, E, E3, E31