US-China tension 'threat' to world eco: IMF chief

The head of the International Monetary Fund, Christine Lagarde, said on Tuesday that fresh trade tensions between the United States and China were the main threat to the world economy. President Donald Trump jolted global markets on Monday by threatening on Twitter that tariffs already imposed on $200 billion in Chinese exports to US would more than double to 25 per cent on Friday from their current level of 10 per cent.

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