Jacques Laffitte, an investment banker who did not create a model for investment banking (In French)

The research program about the history of investment banking gauged in this text the legacy of Jacques Laffitte, one of the initiators of modern investment banking in the years 1800-1840. It assesses the reality of his contributions and argues about their role within the process of modernisation of the Paris banking market at the heart of the first stage of the first industrial revolution. It tried to precise the limits of the breakthroughs achieved by Laffitte within the banking economy of the merchant banks of this time and to explain the flaws of its competitiveness.