The Phillips curve has been at the same time an econometric object, a trade-off curve and an analytical equation representing the aggregate supply in a macro model. The paper considers these aspects as they emerge from the so called new "neoclassical synthesis'' models used for monetary policy....

The Phillips curve has been at the same time an econometric object, a trade-off curve and an analytical equation representing the aggregate supply in a macro model. The paper considers these aspects as they emerge from the so called new ®neoclassical synthesis'' models used for monetary policy....