A country need not run out of money to find itself in a debt crisis. It only has to run short of US dollars to pay for its energy. At the recent International Monetary Fund-World Bank annual meetings in Bangkok, the IMF, which expects global economic growth of 3.1 per cent this year and 3.4 per cent the next, cautioned that energy-importing and lower-income economies face a harder road, even as those riding the artificial intelligence boom fare relatively well. According to the World Bank’s...