Amid the intensified energy shock of early 2023, governments worldwide responded rapidly with extensive fiscal measures intended to ease the financial burden on households and businesses. By mid-June, nearly 900 such interventions had been implemented across 170 countries. However, many of these measures were broad-based, lacked clear sunset clauses, and often subsidized energy prices, potentially discouraging conservation efforts during a critical supply disruption.
These developments represent more than a divergence from International Monetary Fund (IMF) guidance, which has long emphasized timely, targeted, and temporary support. Instead, the surge in government borrowing and expanded deficits reflects a broader global pattern of addressing crises through increased public spending, leaving future administrations to manage the resulting fiscal challenges.
This approach has become entrenched in major economies. Since the 1990s, the United States has consistently deferred fiscal consolidation. France has struggled to meet European deficit targets amid domestic political resistance. Germany’s current government plans to increase borrowing to fund infrastructure repairs and defense upgrades. Japan is pursuing tax cuts alongside a sizeable public and private investment campaign. Meanwhile, the United Kingdom’s new prime minister, Andy Burnham, has indicated a willingness to leverage flexibility in budget rules to permit greater borrowing.
Despite these parallel trends, global coordination has been largely absent. Finance ministers of the G20—the group representing the world’s largest economies—failed in April to issue a joint statement endorsing the current wave of fiscal expansion. This contrasts sharply with a 2010 commitment made at the Toronto G20 summit, where member countries collectively vowed to restore sound public finances following the 2008–09 financial crisis to ensure economic resilience and fiscal sustainability.
Since then, government debt levels have risen substantially. According to IMF data, gross government debt in advanced economies increased from 94% of GDP in 2010 to a projected 108% in 2023. Emerging economies saw their debt ratio jump from 37% to 77% over the same period. Elevated debt levels contribute to higher borrowing costs, exacerbating pressure on public finances globally.
Recent analyses from the IMF and the Bank for International Settlements (BIS) reveal that traditional dynamics linking rising debt to fiscal austerity are weakening. Countries increasingly rely on budget stimulus during economic downturns but do not consistently pursue surpluses during growth phases, instead opting for tax cuts or increased spending. This shift undermines long-term debt reduction efforts.
Several factors contribute to this erosion of fiscal prudence. During the 2010s, persistently low and stable interest rates encouraged governments to accept higher debt burdens. Currently, governments offer fewer justifications for continued borrowing, repeatedly pledging fiscal responsibility but failing to follow through.
More deeply, global megatrends are intensifying fiscal pressures. Heightened geopolitical tensions—including Russia’s invasion of Ukraine, ongoing conflicts in the Middle East, and China’s assertive posture—drive significant defense spending increases with little prospect for near-term relief. The urgent costs of climate change adaptation and mitigation place further demands on public budgets. Additionally, aging populations increase financial obligations for pensions, healthcare, and social care services. Technological advances, such as the AI revolution, may boost economic growth but create transitional challenges requiring government support.
While greater international cooperation could help mitigate these challenges—through reduced defense spending via improved trust, coordinated climate action, and managed migration to address demographic shifts—current geopolitical polarization and domestic political divides severely limit such prospects.
Concerning fiscal discipline, market pressures, often termed "bond vigilantes," have so far exerted only limited influence. Investors have intermittently signaled caution but have not compelled substantive policy changes. As these structural pressures persist, governments face mounting challenges to stabilize public finances. The current fragile equilibrium may endure temporarily, but mounting risks suggest it is unlikely to be sustainable over the longer term.