1. Some tests of specification for panel data: Monte Carlo evidence and an application to employment equations;Arellano;Review of Economic Studies,1991
2. Barros, P., Leite, A.N., 1997. Conduct and competition in portuguese commercial banking, Economia, forthcoming.
3. Beato, P., Mas-Collel, A., 1984. The marginal cost pricing as a regulation mechanism in mixed markets. In: Marchand, M., Pestieau, P., Tulkens, H. (Eds.), The Performance of Public Enterprises. North-Holland, Amsterdam.
4. Efficient estimation using panel data;Breusch;Econometrica,1989
5. Cabral, L., Majure, W.R., 1994. An empirical analysis of bank branching: Portugal 1989–1991. In: Neven, D., Roller, L.-H. (Eds.), The Empirical Analysis of Industrial Organization. CEPR Conference Volume, Berlin.