Americans are often told that they benefit from the privilege of the dollar serving as the world's currency. A strong dollar makes imports cheaper, facilitates demand for American companies, and is tied to cheap government borrowing. But what happens when this powerful privilege weakens? What does it even mean for the dollar to be “strong” or “weak” as a medium of exchange and investment? Why should Americans care that the dollar serves as the reserve currency for the world’s central banks?

In his new book “Our Dollar, Your Problem,” Ken Rogoff, a Harvard professor and former chief economist for the International Monetary Fund, argues that the dollar is past “middle age” and that its global dominance will erode in the coming years. He predicts the dollar will eventually share power with the European Union’s euro and Chinese renminbi in a “tripolar” world.

Rogoff joins Bethany and Luigi to discuss why the dollar's shifting dominance matters so much to the United States and what implications this has for the rest of the world’s payment network. He describes how the dollar has come under pressure from multiple directions, both now and in the past. Outside the U.S., these include past and current international challengers, such as the Soviet ruble, the Japanese yen, and the European euro. From within, the current instigators are rising federal debt, increased use of economic sanctions, and growing political dysfunction. The three also discuss if President Donald Trump’s boisterous support for cryptocurrency further undermines the U.S. dollar. Ultimately, they tease out how the dollar has underpinned American economic prowess for the last half century and what the consequences will be for the American economy – and the world at large – if the dollar is dethroned.

Read a review of Rogoff’s book by Capitalisn’t team member Matt Lucky in ProMarket: https://www.promarket.org/2025/07/24/what-happens-after-the-dollars-hegemony-ends/

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