1. Alesina A, Barro RJ (2002) Currency unions. Q J Econ 117:409–443
2. Artis M, Marcellino M, Proietti T (2005) Business cycles in the new EU member countries and their conformity with the euro area. J Business Cycle Measurement Anal 2:7–41
3. Bajo-Rubio O and Díaz-Roldán C (2005) Vulnerability to shocks in EMU: 1991–2004 Working Paper on International Economics and Finance 04-02, AEEFI-FEDEA
4. Boone L, Maurel M (1999) An optimal currency area perspective of the EU enlargement to the CEECs, Discussion Paper 2119, Centre for Economic Policy Research
5. Cohen D, Wyplosz C (1989) The European Monetary union: an agnostic evaluation. In: Bryant R, et al (eds) Macroeconomic policies in an interdependent world, International Monetary Fund, Washington DC, pp 311–337