The 29th Geneva Report on the World Economy examines three pressures on the international financial system at once: global imbalances, the status of the dollar, and the stability of bond markets. Two of its authors, Valentina Bruno (American University, CEPR) and Cédric Tille (Geneva Graduate Institute, CEPR), tell Tim Phillips why stocks, the dollar and US Treasuries all fell on Liberation Day in April 2025, why that could happen again, and what we should do about it.
So is this a rupture, or a transition in the world's financial system?
The research behind this episode:
Bruno, Valentina, Steven B. Kamin, Angel Ubide, and Cedric Tille. 2026. "Changing Structure and Challenges of the International Financial System: Imbalances, Currencies, and Financial Stability." Geneva Reports on the World Economy 29. Geneva: International Center for Monetary and Banking Studies; Paris and London: CEPR Press. Free to download.
To cite this episode:
Phillips, Tim, Valentina Bruno, and Ceric Tille. 2026. "The challenges to the international financial system”. VoxTalks Economics (podcast).
About the guests
Valentina Bruno is Professor of Finance at the Kogod School of Business, American University, where she holds the Arlene R. and Robert P. Kogod Eminent Scholar Chair in Finance. She is a Research Fellow of the Centre for Economic Policy Research in the Banking and Corporate Finance programme. Her research spans macroeconomics and finance, with recent work on how the US dollar transmits global financial conditions. She has worked at the World Bank and been a visiting scholar at the Federal Reserve Board.
Cédric Tille is Professor of International Economics at the Geneva Graduate Institute, where he heads the Bilateral Assistance and Capacity Building for Central Banks programme. He is a Research Fellow of CEPR in the International Macroeconomics and Finance programme. His research spans financial globalisation, the dynamics of countries' external assets and liabilities, and the currencies used to invoice international trade. He sat on the Bank Council of the Swiss National Bank from 2011 to 2023 and previously worked for nine years at the Federal Reserve Bank of New York.
Research cited in this episode
The triple decline of April 2025. After the US announced sweeping tariffs on 2 April 2025, which President Trump called "Liberation Day", US stocks, Treasuries and the dollar fell together. Bruno argues that foreign investors did not sell their US assets; they bought protection against a falling dollar, and that hedging pushed the currency down. Much of their US equity exposure remains unhedged, so a new shock that starts in the US could trigger the same response.
Global imbalances. Large and persistent current account surpluses in some countries, mirrored by deficits in others. Imbalances were a major policy topic before 2008, faded after the global financial crisis, and are now back. Tille argues that the headline measures have risen only modestly; the concern is China, whose trade surplus is the largest ever recorded as a share of world GDP.
The China shock. Autor, David H., David Dorn, and Gordon H. Hanson. 2013. "The China Syndrome: Local Labor Market Effects of Import Competition in the United States." American Economic Review 103 (6): 2121-2168. Cheap imports from China benefited US consumers as a whole, but the job losses were concentrated in particular industries and places, furniture making among them. Tille uses it to explain why Germany's car workers see the current wave of Chinese competition differently from German consumers.
The coordinated policy package. International Monetary Fund. 2026. "2026 External Sector Report: Amid Rising Imbalances, the Case for Rebalancing." The standard prescription is US fiscal consolidation, more consumption in China and more investment in Europe. The report cites IMF estimates that a coordinated package would narrow global imbalances by 0.5% of world GDP over the medium term, compared with a widening of 0.4% under current trends. Nearly all the narrowing comes from China.
The renminbi debate. Brad Setser of the Council on Foreign Relations argues that China holds its exchange rate down and that a stronger renminbi is part of the solution. Tille notes that other economists treat the exchange rate as a sideshow to China's high savings and weak domestic demand.
The basis trade. Pension funds, insurers and asset managers often prefer to hold Treasury exposure through futures. Hedge funds take the other side; they sell the futures, buy the bonds and earn the small gap between the two prices, funded with overnight borrowing. In calm markets the trade links the futures and cash markets and helps the Treasury sell its debt. When lenders pull back, hedge funds must sell bonds at the same moment. The report cites estimates that Cayman Islands hedge funds alone held about $1.8 trillion of Treasuries.
March 2020 and the UK gilt crisis. In March 2020, the Covid shock set off a scramble for dollars in which even Treasuries were sold, and the Federal Reserve bought Treasuries to restore order. In September 2022, UK pension funds using liability-driven investment strategies had to sell gilts as yields rose, which pushed yields higher still, until the Bank of England stepped in. Bruno cites both as examples of safe assets at the centre of stress, where falling prices force more sales.
The 1970s and 2008. Bruno compares today with two earlier periods when imbalances, the dollar and bond markets came under pressure together: the collapse of the Bretton Woods system of fixed exchange rates in the early 1970s, when inflation also eroded bond values, and the years before 2008, when Asian savings and European bank lending flowed into US assets. In 2008 the stress sat in the banks. Today it sits with pension funds, insurers and hedge funds.
Exorbitant privilege. The phrase, usually attributed to Valéry Giscard d'Estaing as French finance minister in the 1960s, describes the advantage the US gets from issuing the world's main reserve asset; foreigners accept a low return to hold it. Tille points out that the US once ran a trade deficit while earning more on its foreign assets than it paid on its liabilities. That surplus on primary income has now gone.
The market-based trilemma. The old trilemma of international finance, associated with Robert Mundell and Marcus Fleming, says a country cannot have free capital flows, a fixed exchange rate and an independent monetary policy all at once. The report proposes a new one. Governments want to issue ever more debt, regulators want tight limits on bank balance sheets, and investors expect bond markets to work smoothly every day. You can have any two, but not all three all the time.
"Our currency, but your problem." John Connally, US Treasury Secretary, told European counterparts in 1971 that "the dollar is our currency, but it's your problem." The report updates the line; the dollar is no longer just a currency but the operating system of global finance.
Rupture or transition? The report opens with a remark by Mark Carney, Prime Minister of Canada, at the 2026 World Economic Forum, that the world is "in the midst of a rupture, not a transition." The authors test whether the same is true of the international financial system.
More VoxTalks Economics episodes
The Dollar Anchor Is Slipping. Tarek Hassan explains why the dollar became the world's safe haven and how tariffs weaken it.
Addressing Global Imbalances. Gita Gopinath and Philip Lane on why today's imbalances put more risk on government debt and non-bank lenders.
Stablecoins and Global Imbalances. Gilles Moec on how dollar stablecoins could pull global savings into US Treasury bills.
Related reading on VoxEU.org
Changing structure and challenges of the international financial system: Imbalances, currencies, and financial stability, a VoxEU column in which the four authors summarise the report.
Geopolitical tensions and international financial fragmentation: The 28th Geneva Report on the World Economy, a VoxEU column on how geopolitical rivalry is pushing global finance to split along political lines.