This paper investigates the monetary autonomy of Central Eastern and South Eastern European countries with the Euro area. These countries are European Union Member States that have not adopted yet the Euro single currency. Despite high degree of convergence as measured by Maastricht criteria, four of them do no plan to enter the Euro area soon. We therefore assess monetary autonomy of these countries over the long run through the use of a multivariate cointegration methodology with structural breaks (Johansen et al., 2000). This methodology allows us to capture the multidimensional aspects of monetary autonomy in the context of nominal convergence in the Economic and Monetary Union, by including both domestic and Euro area variables into the system (policy rates, infation rates, exchange rate). It also enables us to exploit all information contained in the macroeconomic series of these countries, for which broken economic history translates into non-stationary time series with breaks. Our empirical results suggest that modelling structural breaks changes the number and/or nature of cointegrating relations between our variables compared to the standard error correction model without breaks. With this modelling, we find monetary policy spillover from the Euro area to Bulgaria, the Czech Republic, Hungary and Romania. The inclusion of Euro area inflation to our baseline model enriches the cointegrating relations for the Czech Republic and Bulgaria. Poland is found to be the most monetary-independent country of our
study across the various models estimated. On the other hand, Romania’s monetary interdependence with Euro area is better modelled without taking into account any structural break.