India, April 12 -- Donald Trump's erratic tariff policies have triggered economic instability, accelerated deglobalisation, and jeopardised America's global leadership and economic credibility worldwide.

"Trump is not like you or me, he is crazy. All bets are off" said the renowned American author Michael Wolff in "All or Nothing", published two months ago, the latest of his four best sellers on Donald Trump. Trump calls them works of fiction. Last week, as financial turmoil spread across the world and global markets spooked, all the result of Trump's sweeping tariffs, many found themselves moving to agree with Wolff's description of America's erratic and unpredictable 47th president. As stock markets tumbled and consumer confidence plum...