International audienceThis paper investigates the impact on financial stability of bank competition in emerging markets by taking into account crisis periods. Based on a broad set of commercial banks in Asia over the 1994-2009 period, the empirical results indicate that a higher degree of market power in the banking market is associated with higher capital ratios, higher income volatility and higher insolvency risk of banks. In general, although banks in less competitive markets hold more capital, the levels of capitalization are not high enough to offset the impact on default risk of higher risk taking. Nevertheless, during crisis periods, specifically the 1997 Asian crisis that has directly affected Asian banks, market power in banking ha...