ThinkTankWeekly

What the Iran War Tells Us About the Dollar’s Vulnerability

CFR | 2026-05-18 | economy

Topics: China, Middle East, Trade, United States, Economy

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English Summary

The article argues that recent geopolitical tensions, such as the Iran conflict, are revealing significant vulnerabilities in the dollar's global dominance and the efficacy of U.S. sanctions. Evidence shows that trade payments spiked through China's CIPS using RMB, bypassing the dollar-based SWIFT system, particularly following heightened U.S. sanctions threats. While the market demonstrated a temporary return to dollar reliance, the increasing reliability and cost-effectiveness of RMB alternatives suggest that dollar sanctions are encouraging the development of resistant financial mechanisms. Policymakers must recognize that the appeal of these alternatives stems from offering dollar system benefits with reduced exposure to U.S. sanctions, necessitating a strategic reassessment of global financial dependence.

中文摘要

本文論述,近期地緣政治緊張局勢,例如伊朗衝突,正在揭示美元全球主導地位和美國制裁有效性方面的重大漏洞。證據顯示,尤其是在美國提高制裁威脅之後,貿易支付透過中國的跨境支付系統(CIPS)使用人民幣(RMB)激增,成功繞過了以美元為基礎的SWIFT系統。儘管市場曾短暫恢復對美元的依賴,但人民幣替代方案日益提高的可靠性和成本效益表明,美元制裁正在刺激抗制裁金融機制的發展。政策制定者必須認識到,這些替代方案的吸引力源於它們在降低對美國制裁敞口的前提下,仍能提供美元體系的便利性,這有必要對全球金融依賴進行戰略再評估。

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