October 19, 2026 financial news: The 2026 Bund Summit on "Technology, Geopolitics and the Global Economy" is being held from October 19 to 22 in Huangpu District, Shanghai. Pierre-Olivier Gourinchas, non-resident senior fellow at the Peterson Institute for International Economics and former Economic Counsellor and Director of the Research Department at the International Monetary Fund, attended the conference and participated in a roundtable discussion.
Gourinchas stated that the world is experiencing an artificial intelligence construction boom, but AI has yet to demonstrate positive productivity effects and is instead manifesting more as a massive demand shock. From the forecast adjustments in the IMF's latest World Economic Outlook, it can be seen that growth forecasts for countries benefiting from the AI boom have been substantially upgraded, while growth forecasts for countries hit by geopolitics and high energy prices have been significantly downgraded. Meanwhile, inflation forecasts for the vast majority of countries in 2026 have been revised upward, presenting a pattern of "diverging economic trajectories and converging inflation trends."
Gourinchas also noted that inflation has broadly exceeded expectations, pushing global monetary policy back toward synchronization. In the second quarter of this year, 14 out of 33 major central banks began raising rates, compared with only 2 in the first quarter. Most central banks are tightening monetary policy regardless of their domestic economic performance. On one hand, supply shocks have lasted longer than expected, and central banks can no longer afford to ignore them. On the other hand, the demand升温 brought by AI also requires central bank regulation to safeguard inflation targets.
He emphasized that the new rate hike cycle has driven a broad rebound in global real interest rates and government bond yields. The rise in interest rates is partly a result of monetary policy responding to high inflation, partly driven by market concerns over fiscal risks, and partly because AI is absorbing large amounts of loanable funds, pushing up the equilibrium interest rate. The current level and pace of interest rate increases have not departed from historical ranges, but the key issue is that today's debt base is far higher than it was 25 years ago. In 2000, US public debt stood at about 33% of GDP; today it is close to 100%. An interest rate increase of the same magnitude would amplify the fiscal impact threefold, rapidly eroding the fiscal space of many countries.
Gourinchas stated that tariffs and trade wars are no longer the core risks to the global economy. The global economy has absorbed the tariff shock, and trade flows and market participants have undergone certain adjustments. Currently, there are two major risks. First is the continuously accumulating cross-border financial fragility, some of which is related to global imbalances and the AI boom. Second is economic fragmentation. Compared with trade fragmentation, the potential impact of financial fragmentation is greater. To withstand these risks, countries need fiscal space to build buffers and enhance resilience. However, rising interest rates have already compressed the fiscal space of many countries, and many have yet to carry out difficult fiscal adjustments.
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