It's big business, and London wants a bigger slice of it. Islamic investment has helped build landmarks in the capital like the Olympic Village - and the Shard. Such finance is set to grow - as much as 50% faster than traditional banking. That's according to the UK government, which is tempting Muslim investors with a new bond - or 'sukuk' - based on Islamic principles. Prime minister, David Cameron, announced the bond at the World Islamic Economic Forum in London.
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