move together as in Adrian and Shin (2010), and iii) intermediaries increase their exposure to systematic risk as they … reduce their idiosyncratic risk through diversification, as in Acharya, Schnabl, and Suarez (2010). Under rational …

"While the traditional view of financial innovation emphasizes the risk sharing role of new financial assets, belief …. This paper investigates the effect of financial innovation on portfolio risks in an economy when both the risk sharing and … the possibilities for risk sharing. My main result shows that financial innovation also always increases the speculative …