This study highlights some deficiencies of the stock markets' risk legislation framework, and particularly the CESR (2010) guidelines. We show that the current legislative framework fails to offer incentives to financial management companies to invest in advanced models for more representative...

I study economies where banks do not fully internalize the social costs of default, which distorts their lending decisions. In all these economies, a common general equilibrium effect leads to aggregate over-investment. As a result, under laissez-faire, crises are too frequent and too costly...

Financial regulation should be countercyclical, strengthening during speculative booms to contain excessive leverage and loosening following crises so as to not limit credit extension in hard times. And yet, financial regulation in fact tends to be procyclical, strengthening following crises and...