Global Growth Fears Trigger Warning on Fragile Yen and Soaring US Dollar

The US dollar's recent surge is causing Asian currencies to hit multi-month lows and putting pressure on the euro, leading Japan and China to defend their exchange rates. The yen has fallen nearly 8% against the dollar since mid-July, while the yuan is down over 6% since May. Signs of US economic resilience are convincing some traders that the Federal Reserve will maintain higher interest rates for longer, boosting the dollar. This has prompted Asian policymakers to take action against bearish speculators. However, skepticism remains about the effectiveness of these measures without a less hawkish Fed or an improvement in China's economy.