Foreign banks and funds are set to benefit from a move by U.S. regulators to simplify a trading rule that foreign banks and regulators say has inadvertently complicated firms operating as far afield as Europe and Asia. The Federal Reserve, alongside other U.S. regulators, on Wednesday proposed rewriting the “Volcker Rule” introduced following the 2007-2009 financial crisis in a bid to simplify the regulation and make it easier for banks to comply.