Global financial crises have triggered a heated debate on the role of the financial system and its influence on the real economy. Indeed, during the 2008 subprime crisis, financial markets and banks played a dynamic role. On the one hand, they allowed the dissemination through the economy of poor-quality financial products (Emons, 1997;Stein, 2010). On the other hand, they contributed to the rapid recovery that took place in the United States, offering American companies alternatives to bank financing. In this respect, financial systems provide two main functions. First, they produce the information necessary for the realization of financial transactions and for the optimal allocation of