The affirmation of Italian investment banking appears as an evolutionary process of innovation aimed at allowing big banks to root in a newly emerging financial system, tweaking to the developments of markets and institutions, mainly in response to crises. Financial innovation, though, was not always attended and steered by ‘regulative’ and ‘institutional’ innovation, thus compelling banks to adapt their strategies to the specific kinds of guarantees and risks they can rely upon and have to cope with. Persistent segmentation of the banking system and the presence of large shares of non-contestable financial intermediaries limited universal banks’ external growth and curtailed their ability to collect resources. Big banks’ responses to those...