申铉松（Hyun Shin）和国际清算银行的其他经济学家指出，在纽约和伦敦的金融枢纽引领下，发达国家的低利率和弱势美元驱动着全球金融市场的套息游戏： 借入低息货币，投资于高息货币（通常是新兴市场国家货币 ） 。
As Hyun Shin and other economists at the Bank for International Settlements have argued, low developed-country interest rates and a weak dollar drove financial markets, led by the New York and London hubs, to borrow money in low-interest-rate currencies and invest in higher-interest-rate currencies.