Despite sound theoretical foundations a drawback of the New Keynesian model is its inability to generate adequate persistence in the variables it seeks to explain. A common solution is to modify the model to include lagged variables. However, this is unsatisfactory as many such modifications...

The Balassa-Samuelson (BS) model is evaluated in eight of the eleven EMU countries. This model suggests that productivity differentials between traded and non-traded goods sectors generate sectoral inflation differentials (dual inflation). Furthermore, differentials in the degree of dual...