1. P. Aghion and O.J. Blanchard (1994) ‘On the Speed of Transition in Central Europe’, NBER Working Papers, 4736.
2. L. Anselin (1988) Spatial Econometrics: Methods and Models, Dordrecht: Kluwer Academic Publishers.
3. L. Anselin (1999) Spatial Econometrics, Mimeo: Bruton College, University of Texas at Dallas.
4. M. Arellano and O. Bover (1995) ‘Another Look at the Instrumental Variable Estimation of Error-Components Models’, Journal of Econometrics, 68, 29–51.
5. A. Bassanini and R. Duval (2006) ‘Employment Patterns in OECD Countries: Reassessing the Role of Policies and Institutions’, OECD Economics Department Working Papers, 486.