Advanced Economies Lead Debt Rankings Indicators dated January 1, 2031, with ratios likely expressed as a share of GDP, put Japan far ahead with gross debt at 192.8. The United States follows (142.1),
Dette publique 2031 : Japon, Italie, Canada… Découvrez la carte des fragilités budgétaires face au choc énergétique et aux projections d'endettement.
Pixabay / geralt
Advanced Economies Lead Debt Rankings
Indicators dated January 1, 2031, with ratios likely expressed as a share of GDP, put Japan far ahead with gross debt at 192.8. The United States follows (142.1), then Italy (136.1), China (126.8) and France (120.7). Brazil (106.5), Canada (103.5) and the United Kingdom (102.6) also cross the symbolic 100 threshold.
Net debt, which subtracts public financial assets, reshuffles the hierarchy. Italy takes the top spot (126.7), ahead of Japan (122.8), the United States (115.4) and France (112.6). That suggests Rome and Paris have fewer deployable assets to cushion their liabilities than Tokyo, whose gap between gross and net exceeds 70 points.
The Canadian Case: A False Impression
Canada offers the most striking contrast: 103.5 gross debt, but only 10.4 net debt. South Korea shows a comparable profile (63.1 versus 12.9). These gaps reflect substantial public asset reserves, which puts the apparent fragility of both countries into perspective.
Emerging Markets: Uneven Room for Maneuver
Turkey (27.5 gross, 23.0 net) and Russia (29.1 gross) post the lowest levels in the panel. Saudi Arabia (42.2 and 34.6) and Indonesia (42.2 and 40.7) remain moderate. By contrast, South Africa (82.6 and 81.5) and India (77.7 gross) approach European levels, while Mexico (63.6) and Argentina (52.2) occupy an intermediate position.
On public spending, again for 2031, the United Kingdom leads (43.7), ahead of the United States (38.1) and Russia (37.5). Turkey and South Africa sit at 32.6, Saudi Arabia at 25.0. The combination of high spending and already heavy debt, as in the United Kingdom, signals low fiscal elasticity in the event of a shock.
Energy: The Stress Variable for Budgets
Recent energy developments (date unspecified) shed light on these fragilities: Brent holding above ?, a G7 considering releasing 100 million barrels amid a diesel crisis, and global fuel subsidies that, according to the UN, could exceed ? trillion. For the most indebted states, such subsidies would weigh directly on already stretched trajectories.
At the same time, long-term technological bets are emerging. The U.S. Department of Defense has contracted with Overview Energy to develop a guidance beacon designed to transmit solar power captured in orbit to ground receivers. The startup has also promised up to 1 gigawatt to Meta. A first demonstration is planned for 2028, with deployment of a geostationary constellation from 2030.
A Horizon That Coincides
If that timeline holds, these technologies would reach maturity just as the 2031 debt projections materialize. Their viability remains uncertain, however: physicist Amory Lovins, co-founder of RMI, doubts their profitability against nuclear or geothermal. For the most constrained budgets, the trade-off between immediate support for energy prices and investment in unproven solutions could become one of the decade's major dilemmas.
This article was written with the assistance of artificial intelligence and verified by our editorial team.
This analysis was produced with the assistance of artificial intelligence, from institutional sources and verifiable open data. AI Transparency