1. The oligopoly solution tested;Alexander;Economics Letters,1988
2. An empirical investigation of potential competition: evidence from the banking industry;Amel,1988
3. Strategic groups in banking;Amel;Review of Economics and Statistics,1988
4. The estimation of the degree of oligopoly power;Appelbaum;Journal of Econometrics,1982
5. Contestable markets and the theory of industry structure;Baumol,1982