In the latest version of its Global Risk assessment, the Economist Intelligence Unit ranked victory for the Republican front-runner at 12 on an index where the current top threat is a Chinese economic "hard landing" rated 20.
    
Justifying the threat level, the EIU highlighted the tycoon's alienation towards China as well as his comments on Islamist extremism, saying a proposal to stop Muslims from entering the United States would be a 'potent recruitment tool for jihadi groups'.

It also raised the spectre of a trade war under a Trump presidency and pointed out that his policies "tend to be prone to constant revision".

By comparison it gave a possible armed clash in the South China Sea an eight -- the same as the threat posed by Britain leaving the European Union –  and ranked an emerging market debt crisis at 16.

A Trump victory, it said, would at least scupper the Trans-Pacific Partnership between the US and 11 other American and Asian states signed in February, while "his hostile attitude to free trade, and alienation of Mexico and China in particular, could escalate rapidly into a trade war."
    
However, the organisation said it did not expect Trump to defeat his most likely Democratic opponent, Hillary Clinton, in an election and pointed out that Congress would likely block some of his more radical proposals if he won November's election.

Rated at 12 alongside the prospect of a Trump presidency was the threat of Islamic State, which the EIU said risked ending a five-year bull run on US and European stock markets if terrorist attacks escalated.

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