In this context, I note that in the US the Dodd-Frank Act prohibits banks from proprietary trading (the so-called Volcker rule) and restricts investments in hedge funds and private equity by commercial banks and their affiliates.
The imposition of such restrictions is not being considered by the FSB, which is looking instead at a possible  1  Gorton and Metrick (2009), Securitised Banking and the Run on Repo, NBER Working Paper No 15223. 2  See Bakk-Simon et al. (2012), Shadow Banking in the Euro Area: An Overview, ECB Occasional Paper No 133, April.