At the same time there were progressively more skeptical views on the impact of securitization on the financial system stability. Some argue that by making illiquid loans liquid securitization could increase, other things being equal, the risk appetite of banks (Calem and LaCour, 2003; Wagner, 2007; and Brunnermeier and Sannikov, 2009). Risk sharing within the financial sector through securitization can also amplify bank risks also at the systemic risk level (Brunnermeier and Sannikov, 2010). Wagner (2007) shows that the liquidity of bank assets attained to securitization increases banking instability and the externalities associated with banking.
