By Lars Mucklejohn The UK’s banking regulator is mulling “further steps” to boost the City’s international competitiveness as one of its top brass hailed a “broadly welcoming” response to its softening of bank capital rules. David Bailey, the Bank of England’s executive director for prudential policy, told City AM that a growth mandate imposed on UK financial regulators would make for “a really exciting few years ahead”. “We’ve got a vibrant, diverse financial sector in the UK,” he said. “But our job now is to think about what further steps… we can do to further enhance competition, competitiv…