S9 Ep52: The Dollar Anchor Is Slipping

April 2025: Liberation Day. President Trump announces sweeping new tariffs. And then, the dollar did something a safe haven currency is not supposed to do: it fell.

Tarek Hassan (Boston University, CEPR), working with Thomas Mertens, Jingye Wang and Tony Zhang, has been investigating what makes a currency the global anchor. Being the world's biggest economy helps, but what really matters is how far an economy's shocks affect world prices. Tariffs reduce this effect. But are we near a tipping point, when the euro takes over as the global reserve currency? We might be closer than you think and, if a change happens, it might happen more quickly than you think too.

This is the third of four episodes drawn from papers commissioned for the second Economic Policy: Papers on European and Global Issues conference, held in Venice on 19 and 20 June 2026 and organised by CEPR, CESifo and Sciences Po.

The research behind this episode:

Hassan, Tarek A., Thomas M. Mertens, Jingye Wang, and Tony Zhang. 2026. "Openness, Integration, and the International Monetary Order." Conference draft, presented at the 2nd Economic Policy: Papers on European and Global Issues Conference, Venice, 19 to 20 June 2026. Forthcoming in Economic Policy.

To cite this episode:

Phillips, Tim, and Tarek A. Hassan. 2026. "The Dollar Anchor Is Slipping." VoxTalks Economics (podcast).

About the guest

Tarek A. Hassan is Professor of Economics at Boston University, a Research Fellow of the National Bureau of Economic Research, and a Research Fellow of the Centre for Economic Policy Research. His research spans international finance, macro-finance, and the political economy of growth, from measuring firm-level political risk with large language models to, in this paper, the size and openness that decide which currency the world treats as safe.

Research cited in this episode

Liberation Day and the April 2025 tariffs. On 2 April 2025, the White House announced a sweeping set of import tariffs. Hassan and his co-authors treat the market reaction to that announcement, in which the dollar fell even as US interest rates rose and US stocks underperformed, as the anomaly their model is built to explain; a currency behaving that way in a crisis usually counts as risky, not safe. CEPR has gathered further commentary on the announcement and its aftermath on its Trump and Tariffs page.

Exorbitant privilege. A term coined in the 1960s for the advantage the United States gets from issuing the world's reserve currency, since foreign investors will hold dollar assets at a lower return than they would demand elsewhere. Hassan uses it to explain why Americans can borrow more cheaply than almost anyone else, and why losing anchor status would raise the US government's own borrowing costs.