LONDON, Oct 24 (Reuters) - Investors welcomed Rishi Sunak as Britain's new prime minister on Monday, but they're likely to give him little leeway to diverge from spending restraint and tax rises after his predecessor shook their faith in the Conservative party's management of the economy. Register now for FREE unlimited access to Reuters.com RegisterOutgoing Prime Minister Liz Truss's month and a half in power caused chaos in British financial markets. Yet Donovan said the mayhem of the last month means Sunak will have next to no room to make bold choices, lest he risk the market's wrath. And I don't think that the incoming prime minister has that." "The settling down of the situation in the UK means what is happening in politics is now more of an idiosyncratic thing just affecting UK markets, and in the UK too what global markets are doing will become more and more important."

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