Britain is very good at it, leading the world in various financial markets, including foreign exchange and over-the-counter derivatives.

ECONOMIST: Global finance

In anticipation of the new regulations, DB set up a new derivative exchange-clearing unit called Markets Clearing for listed and over-the-counter derivatives for interest rates, foreign exchange, credit, commodities and equities contracts.

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London has almost a third of the world's foreign-exchange dealing and over a third of over-the-counter derivatives business.

ECONOMIST: London pride