1. [1] Alecke, B., Huber, P. and Untiedt, G., “ What a difference a constant makes. How predictable are international migration flows ?,” In Migration Policies and EU Enlargement. The Case of Central and East Europe, OECD Proceedings Paris, 2001, pp. 63-78.
2. [2] Alvarez-Plata, P., Brü cker, H. and Siliverstovs, B., “ Potential migration from central and eastern Europe into the EU-15: an update,” Final Report for the European Commission, DG Employment and Social Affairs, 2004.
3. [3] Arellano, M. and Bover, O., “ Another look at the instrumental variables estimation of error-components models,” Journal of Econometrics, 68, 1995, pp. 29-51.
4. [4] Attanasio, O. and Padoa-Schioppa, F., “ Regional inequalities, migration and mismatch in Italy, 1960-1986,” In Padoa-Schioppa F. (ed), Mismatch and Labour Mobility, Cambridge University Press, Cambridge, 1991.
5. [5] Baltagi, B., Econometric Analysis of Panel Data, John Wiley & Sons, Chichester, 2005.