# Public-Debt Sustainability ## What this driver is Public-debt sustainability is the continuing capacity of a sovereign (and, neighbouring, of sub-sovereign LGFVs) to service and roll debt without a standstill, a coercive restructuring, or a hidden-debt surprise. It is a meter, not a unique debt-to-GDP integer stored as size. Contested ratios require a named IMF DSA, World Bank IDS, or finance-ministry table. The driver is not [belt-road-debt-stress](/drivers/belt-road-debt-stress). It is not [china-property-crisis](/drivers/china-property-crisis), which is onshore developers and LGFV-land. LGFV rollover stress dual-homes here as a fiscal observation. They do not replace it. It is not hung on [territorial-revisionism](/drivers/territorial-revisionism) (1918–45). It is not ukraine-war, though 2022 energy and rate shocks are neighbours. The attached time series uses Central government debt, total (% of GDP) (GC.DOD.TOTL.GD.ZS) as a disclosed inverted proxy: a higher raw debt ratio is treated as less sustainability. A debt-ratio series is not a Common Framework committee and not an LGFV rollover. Readers should treat it as lineage, not as a unique later crisis coefficient. ## Mechanism Sustainability moves through named channels. First, primary balance and rates. When real rates rise faster than growth, rollover cost jumps. This page does not invent a unique r-g integer. Second, currency and external. FX-denominated coupons force import compression when reserves fall. Sri Lanka’s 12 April 2022 interim policy is the dated illustration, already on belt-road-debt-stress. Dual-home. Third, hidden and sub-sovereign. LGFVs, SOE guarantees, and collateralised bilateral loans can sit off the central-government book that GC.DOD.TOTL.GD.ZS sees. That is why the proxy is weak for China and for BRI. china-property-crisis is the onshore neighbour. Fourth, restructuring architecture. G20 Common Framework (November 2020) is the official bilateral treatment track. Fifth, household incidence. Austerity after a standstill hits fuel, medicine, and transfers. Criticism-first: sustainability restored on a spreadsheet can still be a queue at a pump. This page does not invent a unique later poverty integer. Timing is a coupon day, a DSA vintage, and years of rollover. A later genuine comparable-treatment agreement is a new fact. ## Evidence base The live proxy is World Bank GC.DOD.TOTL.GD.ZS (https://api.worldbank.org/v2/country/all/indicator/GC.DOD.TOTL.GD.ZS?date=2020:2025&format=json&per_page=20000). Sri Lanka Ministry of Finance interim policy, 12 April 2022. IMF DSAs. World Bank International Debt Statistics. G20 Common Framework, November 2020. Evidence is strongest for a named standstill and for the existence of a debt-ratio series. It is weaker for the claim that GC.DOD.TOTL.GD.ZS captures LGFVs or BRI collateral. It is weakest where a unique later default-count is invented as size. ## Effect on welfare indicators This meter, when it actually fails, is a first-order channel into import compression and a second-order channel into household prices. - [Global consumer price inflation](/indicators/econ-global-consumer-price-inflation): direction higher in a defaulting importer when FX is rationed onto fuel and food. Horizon: months to a couple of years. Confidence: medium for that channel; low as a unique global CPI coefficient. The indicator is lower-is-better, so that channel is a negative welfare direction. A death path does not follow from a DSA. Missing coefficients stay missing. The welfare sign of a completed standstill on debtor households is negative. A later completed rail opening does not rebate the standstill. ## Interactions and contested points Reinforcement is a hike and a standstill in the same year. Offsetting is an IMF disbursement. The strongest competing view is that the inverted debt-ratio proxy is too remote, especially where hidden debt dominates. That objection is serious. The competing defence is only this: the node already exists, the proxy is disclosed and inverted, and an honest description is better than a template that pretends a central-government ratio *is* sustainability. It does not. Names without a public-complete dossier stay plain text. Established: GC.DOD.TOTL.GD.ZS as disclosed inverted proxy; Sri Lanka 12 April 2022 dual-homes to the BRI event bundle; LGFV stress dual-homes to the China property event bundle. Not established: a unique debt-to-GDP or haircut integer as size. A later genuine comparable-treatment agreement is a new fact. It would not rename this meter as a technician success. ## Dated facts - 2025: Lai’s Washington Post article names a US$40 billion supplementary defence budget toward 5 percent of GDP. https://factrail.ai/facts/tw-lai-40bn-2025. Sources: https://www.taipeitimes.com/News/taiwan/archives/2025/11/26/2003847877, https://english.president.gov.tw/News/7047. - 2025: Prabowo’s first full budget jumps defence spending 37 percent for 2026. https://factrail.ai/facts/id-prabowo-defense-budget-2025. Sources: https://www.reuters.com/world/asia-pacific/indonesia-unveils-2026-budget-with-lower-deficit-targets-fiscal-balance-within-2025-08-15/, https://www.setneg.go.id/. - 2025: Expanded sales and service tax takes effect after a June revision. https://factrail.ai/facts/my-anwar-sst-2025. Sources: https://www.investmalaysia.gov.my/resources/latest-announcements/targeted-revision-of-sales-tax-rate-and-expansion-of-service-tax-scope-effective-1-july-2025, https://www.mof.gov.my/portal/images/2025/06/27/Media-Release-Revisions-to-the-SST-take-into-account-public-and-industry-feedback.pdf. - 2025: Labour Insurance actuarial report pushes fund solvency only to 2031 with NT$13.23 trillion implicit liabilities. https://factrail.ai/facts/tw-lai-laobao-2025. Sources: https://www.taipeitimes.com/News/taiwan/archives/2025/01/21/2003830596, https://www.mol.gov.tw/. - 2025: Prabowo allocates Rp48.8 trillion to continue Jokowi’s Nusantara capital. https://factrail.ai/facts/id-prabowo-ikn-budget-2025. Sources: https://thejakartapost.com/business/2025/02/14/ikns-budget-bumped-to-rp-14t-despite-broader-cuts.html, https://en.antaranews.com/news/342254/prabowo-allocates-rp488-trillion-for-continuity-of-ikn-development. - 2024: The incoming 2025 budget keeps free meals at Rp71 trillion under a 3-percent deficit ceiling. https://factrail.ai/facts/id-prabowo-meals-71t-ceiling-2024. Sources: https://www.reuters.com/world/asia-pacific/indonesias-free-meals-plan-spotlight-prabowo-readies-office-2024-10-17/, https://www.setneg.go.id/. - 2024: NDIS Back on Track legislation receives Royal Assent. https://factrail.ai/facts/au-ndis-track-2024. Sources: https://www.ndis.gov.au/ndis-laws/getting-ndis-back-track, https://www.legislation.gov.au/C2024A00081/asmade. - 2024: IMF Executive Board approves ECF/EFF arrangements for Ethiopia. https://factrail.ai/facts/et-imf-eff-2024. Sources: https://www.reuters.com/world/africa/imf-approves-ethiopia-loan-program-2024-07-29/, https://www.imf.org/en/News/Articles/2024/07/29/pr24287-ethiopia-imf-executive-board-approves-arrangements-under-the-ecf-and-eff. - The Treasury prints a primary fiscal surplus in 2024. https://factrail.ai/facts/ar-surplus-2024. Sources: https://www.reuters.com/world/americas/argentina-primary-surplus-milei-2024-07-15/, https://www.argentina.gob.ar/economia. - 2024: Tusk government reviews then partly continues the CPK mega-airport project. https://factrail.ai/facts/pl-tusk-cpk-2024. Sources: https://www.reuters.com/world/europe/poland-tusk-cpk-airport-review-2024/, https://www.gov.pl/web/infrastruktura. - Kenya issues a 2024 Eurobond to refinance maturing external debt. https://factrail.ai/facts/ke-eurobond-2024. Sources: https://www.reuters.com/markets/rates-bonds/kenya-eurobond-issue-2024-02-14/, https://www.treasury.go.ke/. - 2024: IMF Executive Board completes reviews of Kenya’s ECF/EFF arrangement. https://factrail.ai/facts/ke-imf-ecf-review-2024. Sources: https://www.reuters.com/world/africa/imf-completes-kenya-loan-review-2024-01-17/, https://www.imf.org/en/News/Articles/2024/01/17/pr2413-kenya-imf-executive-board-completes-reviews. ## Methodology https://factrail.ai/methodology Canonical: https://factrail.ai/drivers/public-debt-sustainability