Could turmoil spread across the euro zone?
Protesters gather for a student demonstration at Place de la Bastille with a view of the Colonne de Juillet monument in Paris, on October 8, 2026, as part of a nationwide protest movement over learning conditions.
Simon Wohlfahrt | Afp | Getty Images
As France’s economic and political woes mount, investors are asking whether the country’s debt problems risk contaminating the rest of the euro zone.
Markets are flashing alarm bells over the euro zone’s second-biggest economy. The euro has remained under pressure, falling almost 5% against the dollar since the start of the year.
France’s benchmark borrowing cost, the yield on its 10-year bond, rose above 5% for the first time since 2002 this week before moving sharply higher.
Meanwhile, the spread between French and German 10-year bond yields — a closely watched metric of distress — reached more than 170 basis points on Thursday for the first time since the euro zone debt crisis of the early 2010s. The cost of insuring the French government against default, as measured by credit default swaps, is also the highest since that period.
Euro zone contagion
The big concern is fragmentation, when countries that share a currency face sharply different borrowing costs, compounding market stress and risking spiraling debt repayments for the worst-impacted countries.
As the euro zone sovereign debt crisis of the early 2010s showed, market stress in one country can spread rapidly through economies that share a currency and a central bank but retain separate fiscal systems. The crisis began in Greece before spreading to countries including Portugal, Ireland, Italy and Spain.
Governments were expected to rescue struggling banks, which held large amounts of sovereign debt, creating a vicious cycle.
The crisis only eased after rescue programs tied to sweeping austerity measures, and ECB President Mario Draghi pledged in 2012 to do “whatever it takes” to preserve the euro.
Economists are warning that a new vicious cycle is being created — not only in France but in big economies from the U.S. to the U.K. — as investor concern over rising government debt pushes up yields and interest costs, which in turn add to the debt burden.
A slowdown in bond purchases raises “the specter that the government will be forced into default because it simply doesn’t have the cash to pay interest and principal on its debt,” Nobel laureate Paul Krugman wrote in a blog on Oct. 8.
“Fear of default then leads to even more capital flight, which increases fears of default and the interest rate,” he said.
France’s debt risks
France in particular has one of the highest deficit-to-GDP ratios in the 21-nation euro area and a growing national debt pile. Its economy has slowed to a crawl, with the government cutting its 2026 growth forecast to just 0.5%.
Those fiscal strains come as political volatility and social unrest raise doubts about the government’s ability to deliver measures aimed at stabilizing the public finances.
“We are deep into French…
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