4BERGER A N. The profit-structure relationship in banking: tests of market-power and efficient-structure hypotheses[J]. Journal of Money, Credit and Banking, 1995, 27 (2) :404 - 431.
5SHAFFER S. Bank competition in concentrated markets [J]. business review, 1994(3 - 4) :3 - 17.
6SMIRLOCK M. Evidence on the (non) relationship between coneentration and profitability in banking [ J ]. Journal of Money, Credit and Banking, 1985, 17(1) : 69 - 83.
7VENNET V. Cost and profit efficiency of financial conglomerate and universal banks in Europe [J ]. Journal of Money, Credit and Banking, 2002, 34(1): 254-282.
8PANZAR C, ROSSE N. Testing for monopoly equilibrium [J ]. The Journal of Industrial Economics, 1987 (4) : 443 - 456.
