HH
"most of it is thought up in the City of London and that's one of our (only) export industries these days"
Those responsible for financial engineering are not based in the City of London, per se, and their incomes are shown in $. There "thinking" which will be a method to avoid taxation set by HMG is made under an umbrella of off shore entities, frequently used by large corporations to move their financial responsibility elsewhere. Like those enjoying coffee at the airport after purchasing goods on line for their travel.
The City of London is only a square mile of the whole, most bank HQ's & etc are elsewhere.
