By Alice Gledhill | Updated on Oct 09, 2026 at 04:58 PM
Nobel Prize-winning economist Paul Krugman warned that France’s deteriorating public finances are on an “unsustainble path” and at risk of unleashing a debt crisis across the euro area.
“France’s current situation is really worrisome,” he wrote in a Substack post dated Oct. 8. “In particular, it’s not just a matter for France alone. France’s membership in the euro area creates the possibility of an explosive debt crisis — and such a crisis could be destructive to European unity.”
Krugman’s post follows a sharp selloff in French government debt in recent months, triggered first by fears of a new inflation wave and then fueled by concerns over the country’s large budget deficit and polarized politics. The premium investors require to own French 10-year bonds over their German equivalents, the region’s safe asset, has climbed to levels last seen in the crisis of 2011 and 2012.
At €3.6 trillion ($4 trillion), or 119% of GDP, France’s debt is the highest since the birth of the euro. Yet the government continues to add to the burden, Krugman wrote, and its lack of fiscal responsibility means other euro-area members would likely resist offering a bailout, which would in any case be “extremely expensive” given the size of the economy.
“France may have crossed the line from too big to fail to too big to save,” Krugman added. “In short, it’s all too easy to describe a really ugly scenario for a French crisis that would be extremely divisive within Europe.”
European Central Bank President Christine Lagarde told euro-area finance ministers this week that officials are paying attention to financial markets and have the tools to counter unwarranted, disorderly moves. French Finance Minister Roland Lescure, meanwhile, has said the country is far from needing the ECB to step in.
French bonds gained on Friday, sending the 10-year yield three basis points lower to 4.86%.
While the euro-area’s second biggest economy is not alone in struggling with weak public finances, Krugman says it stands out given “its persistent inability to get realistic about retirement,” with people drawing their pensions earlier than anywhere else in western Europe.
Marine Le Pen, the front-runner in next year’s presidential election, has pledged to enable some workers to retire as early as 60. Meanwhile, students across France are rioting over a lack of teachers, overcrowding and crumbling school buildings.
“France is effectively handing over large subsidies to older French at the expense of everyone else. Mass national student demonstrations should come as no surprise,” Krugman wrote.
Krugman said the implied probability of France being unable to pay its debts, based on credit default swaps pricing, is minimal at 1.2% but “too low.”
“The sudden rise of the current CDS price on French government bonds is very worrying,” he wrote.