New Delhi, May 6 -- Gold prices rose after US President Donald Trump's tweets signalled fresh trade aggression vis-a-vis China. When risks rise in asset markets, many investors turn to the yellow metal for safety. Of course, gold is no asset, for it yields no returns, even if its capital value could appreciate over time. Investment advisors over the decades have grown hoarse advising people to stay away from what John Maynard Keynes, no less, described as a "barbarous relic". Money put in gold does little for the economy. Since it has no productive value, it is seen as a dead weight by investors who insist all money should be put to work in generating more of it by way of economic activity that results in jobs and incomes....