*. :. Note and *. *. , * signifient que les coefficients sont significatifs à 1%, 5% et 10%, respectivement. D-W stat est le statistique de Durbin-Watson qui mesure l'autocorrélation des résidus et il doit être égal à 2 pour que les résidus ne soient pas autocorrélés. J-B stat représente le statistique de Jarque-Bera qui teste l

Y. Altunba?, E. P. Gardener, P. Molyneux, and B. Moore, Efficiency in European banking, European Economic Review, vol.45, issue.10, pp.1931-1955, 2001.
DOI : 10.1016/S0014-2921(00)00091-X

A. Belaisch, Do Brazilian Banks Compete? International Monetary Fund, Working Paper n°WP, 2003.

A. Berger and D. Humphrey, Measurement and efficiency issues in commercial banking Output measurement in the services sector, 1992.

A. Berger and L. J. Mester, Inside the black box: What explains differences in the efficiencies of financial institutions?, Journal of Banking & Finance, vol.21, issue.7, pp.895-947, 1997.
DOI : 10.1016/S0378-4266(97)00010-1

J. Bikker and K. Haaf, Competition, concentration and their relationship: An empirical analysis of the banking industry, Journal of Banking & Finance, vol.26, issue.11, pp.2191-2214, 2002.
DOI : 10.1016/S0378-4266(02)00205-4

J. P. Bonin, I. Hasan, and P. Wachtel, Bank performance, efficiency and ownership in transition countries, Journal of Banking & Finance, vol.29, issue.1, pp.31-53, 2005.
DOI : 10.1016/j.jbankfin.2004.06.015

T. Bresnahan, The oligopoly solution concept is identified, Economics Letters, vol.10, issue.1-2, pp.87-92, 1982.
DOI : 10.1016/0165-1765(82)90121-5

T. Bresnahan, Empirical studies of industries of market power Handbook of industrial organization, pp.1011-1057, 1989.

N. Cetorelli, Competitive analysis in banking: Appraisal of the methodologies, Federal Reserve Bank of Chicago, Economic Perspectives, vol.23, issue.1, 1999.

P. Coccorese, Banking competition and macroeconomic conditions: a disaggregate analysis, Journal of International Financial Markets, Institutions and Money, vol.14, issue.3, pp.203-219, 2004.
DOI : 10.1016/j.intfin.2003.07.001

T. J. Coelli, Guide to DEAP Version 2.1: A Data Envelopment Analysis Computer Program. Centre for Efficiency and Productivity Analysis, Document de travail n°8, 1996.

T. J. Coelli, A Guide to Frontier Version 4.1: A Computer Program for Stochastic Frontier Production and Cost Function Estimation. Centre for Efficiency and Productivity Analysis, Document de travail n°7, 1996.

D. Bandt, O. Davis, and E. , Competition, contestability and market structure in European banking sectors on the eve of EMU, Journal of Banking & Finance, vol.24, issue.6, pp.1045-1066, 2000.
DOI : 10.1016/S0378-4266(99)00117-X

H. Demsetz, Industry Structure, Market Rivalry, and Public Policy, The Journal of Law and Economics, vol.16, issue.1, pp.1-9, 1973.
DOI : 10.1086/466752

G. Dell-'ariccia, Learning by lending, competition, and screening incentives in the banking industry, 2000.

R. Gelos and J. Roldós, Consolidation and Market Structure in Emerging Market Banking Systems, 2002.

C. Gondat-larralde and L. Lepetit, The impact of market structure and efficiency on bank profitability: an empirical analysis of banking industries in Central and Eastern Europe, Financial and Monetary Integration in the New Europe: Convergence between the EU and Central and Eastern Europe, pp.416-442, 2001.
DOI : 10.4337/9781781009994.00028
URL : https://hal.archives-ouvertes.fr/hal-00795008

D. A. Grigorian and V. Manole, Determinants of Commercial Bank Performance in Transition: An Application of Data Envelopment Analysis. FMI Document de travail n°WP, 2002.

K. Dracos and P. Konstantinou, Competition and Contestability in transition banking: an empirical analysis, South-Eastern Europe Journal of Economics, vol.2, pp.183-209, 2005.

J. Friedman and C. Mezetti, Bounded rationality, dynamic oligopoly, and conjectural variations, Journal of Economic Behavior & Organization, vol.49, issue.3, pp.287-306, 2002.
DOI : 10.1016/S0167-2681(02)00005-7

S. Fries and A. Taci, Cost efficiency of banks in transition: Evidence from 289 banks in 15 post-communist countries, Journal of Banking & Finance, vol.29, issue.1, pp.55-81, 2005.
DOI : 10.1016/j.jbankfin.2004.06.016

D. A. Grigorian and V. Manole, Determinants of Commercial Bank Performance in Transition : An Application of Data Development Analysis. FMI Document de travail n°WP, 2002.

W. Gruben and R. Mccomb, Privatization, competition, and supercompetition in the Mexican commercial banking system, Journal of Banking & Finance, vol.27, issue.2, pp.229-249, 2003.
DOI : 10.1016/S0378-4266(01)00218-7

D. Hancock, The Financial Firm: Production with Monetary and Nonmonetary Goods, Journal of Political Economy, vol.93, issue.5, pp.859-880, 1985.
DOI : 10.1086/261339

T. Hannan and J. Liang, Inferring market power from time-series data, International Journal of Industrial Organization, vol.11, issue.2, pp.205-218, 1993.
DOI : 10.1016/0167-7187(93)90004-V

I. Hasan and K. Marton, Development and efficiency of the banking sector in a transitional economy: Hungarian experience, Journal of Banking & Finance, vol.27, issue.12, pp.2249-2271, 2003.
DOI : 10.1016/S0378-4266(02)00328-X

O. Havrylchyk, Efficiency of the Polish banking industry: Foreign versus domestic banks, Journal of Banking & Finance, vol.30, issue.7, pp.1975-1996, 2006.
DOI : 10.1016/j.jbankfin.2005.07.009

G. Hondroyiannis, S. Lolos, and E. Papapetrou, Assessing competitive conditions in the Greek banking system, Journal of International Financial Markets, Institutions and Money, vol.9, issue.4, pp.377-391, 1999.
DOI : 10.1016/S1042-4431(99)00017-7

I. Isik and M. K. Hassan, Technical, scale and allocative efficiencies of Turkish banking industry, Journal of Banking & Finance, vol.26, issue.4, pp.719-766, 2002.
DOI : 10.1016/S0378-4266(01)00167-4

M. Klein, A Theory of the Banking Firm, Journal of Money, Credit and Banking, vol.3, issue.2, pp.696-709, 1971.
DOI : 10.2307/1991279

E. Kraft and D. Tirtiroglu, Bank Efficiency in Croatia: A Stochastic-Frontier Analysis, Journal of Comparative Economics, vol.26, issue.2, pp.282-300, 1998.
DOI : 10.1006/jcec.1998.1517

L. Lau, On identifying the degree of competitiveness from industry price and output data, Economics Letters, vol.10, issue.1-2, pp.93-99, 1982.
DOI : 10.1016/0165-1765(82)90122-7

E. Mamatzakis, C. Staikouras, and N. Koutsomanoli-fillipaki, Competition and concentration in the banking sector of the South Eastern European region, Emerging Markets Review, vol.6, issue.2, pp.192-209, 2005.
DOI : 10.1016/j.ememar.2005.03.003

P. Molyneux, J. Thornton, and D. M. Lloyd-williams, Competition and market contestability in Japanese commercial banking, Journal of Economics and Business, vol.48, issue.1, pp.33-45, 1996.
DOI : 10.1016/0148-6195(95)00047-X

M. Monti, Deposit, credit, and interest rate determination under alternative bank objectives, Mathematical methods in investment and finance, 1972.

A. Nathan and E. Neave, Competition and Contestability in Canada's Financial System: Empirical Results, The Canadian Journal of Economics, vol.22, issue.3, pp.576-594, 1989.
DOI : 10.2307/135541

J. Panzar and J. Rosse, Testing For "Monopoly" Equilibrium, The Journal of Industrial Economics, vol.35, issue.4, pp.443-456, 1987.
DOI : 10.2307/2098582

S. Peltzman, The Gains and Losses from Industrial Concentration, Journal of Law and Economics, vol.20, pp.392-415, 1977.

R. Rezvanian and S. Mehdian, An examination of cost structure and production performance of commercial banks in Singapore, Journal of Banking & Finance, vol.26, issue.1, pp.79-98, 2002.
DOI : 10.1016/S0378-4266(00)00172-2

C. Sealey, . Jr, and J. T. Lindley, INPUTS, OUTPUTS, AND A THEORY OF PRODUCTION AND COST AT DEPOSITORY FINANCIAL INSTITUTIONS, The Journal of Finance, vol.32, issue.4, pp.1251-1266, 1977.
DOI : 10.1111/j.1540-6261.1977.tb03324.x

S. Shaffer, Competition in the US banking industry, Economics Letters, vol.29, issue.4, pp.323-350, 1989.

S. Shaffer, A Test of Competition in Canadian Banking, Journal of Money, Credit and Banking, vol.25, issue.1, pp.49-61, 1993.
DOI : 10.2307/2077819

S. Shaffer, The Winner's Curse in Banking, Journal of Financial Intermediation, vol.7, issue.4, pp.359-392, 1998.
DOI : 10.1006/jfin.1998.0251

S. Shaffer, Viability of Traditional Banking Activities: Evidence from Shifts in Conduct and Excess Capacity, International Journal of the Economics of Business, vol.4, issue.2, pp.125-143, 1996.
DOI : 10.2307/3440669

S. Shaffer, Correlation tests for competitive and Cournot conduct, Review of Industrial Organization, vol.16, issue.3, pp.313-318, 2000.
DOI : 10.1023/A:1007718213621

S. Shaffer, Banking conduct before the European single banking license: a cross-country comparison, The North American Journal of Economics and Finance, vol.12, issue.1, pp.79-104, 2001.
DOI : 10.1016/S1062-9408(01)00041-9

S. Shaffer, Patterns of competition in banking, Journal of Economics and Business, vol.56, issue.4, pp.287-313, 2004.
DOI : 10.1016/j.jeconbus.2003.10.003

S. Shaffer and J. Disalvo, Conduct in a banking duopoly, Journal of Banking & Finance, vol.18, issue.6, pp.1063-1082, 1994.
DOI : 10.1016/0378-4266(94)00060-3

J. Tirole, The theory of industrial organization, 1988.

L. Toolsema, Competition in the Dutch consumer credit market, Journal of Banking & Finance, vol.26, issue.11, pp.2215-2229, 2002.
DOI : 10.1016/S0378-4266(02)00206-6