The experience of 1914 implies that a credible alternative can replace an entrenched world currency, especially after an unfavorable balance of trade has weakened it. But even then, dethroning the reigning king of international exchange takes time.
1914年的经验表明，具有可信度的替换货币可以取代地位牢靠的世界货币，特别是在不良贸易平衡削弱这一货币之后。但是即使在那时，夺取国际交易国王宝座还是要假以时日。