I don't like pubs <a href=" http://messingengroef.nl/purchase-ygra.pdf#stew ">ygra-gold-200</a> All this buying or selling might be hard to distinguish from proprietary trading—especially since banks in the past have often traded derivatives not just to hedge but for profit. Regulators' challenge was to devise language that would let banks know, in advance of given trades, whether they were permitted, and wouldn't hamstring legitimate bank businesses.