Where every figure came from
US Congressional Research Service, The Eurozone Crisis: Overview and Issues for Congress, R42377 (updated 25 March 2013) (Cheap credit, public and private debt, the missing fiscal union, and the response): https://www.everycrsreport.com/reports/R42377.html. Public domain (US government work), so quoted directly. 'Causes of the Crisis': as the periphery countries prepared to adopt the euro, 'their bond spreads fell dramatically, converging to the interest rates paid by the traditionally stronger economies of Eurozone "core" countries'; they 'took advantage of access to new, cheap credit, but capital inflows were not always sufficiently used for productive investments that could generate the resources with which to repay debt'; 'In some countries, debt was concentrated in the public sector while in others, debt accumulated in the private sector.' 'Public sector debt was most problematic in Greece, Portugal, and Italy.' 'Greece is accused of having poor management of public finances, with rampant tax evasion and high government spending on public sector jobs and benefits'; Portugal 'consistently ran deficits'; Italy 'has a long history of high public debt', above 100% of GDP before the crisis, 'although its fiscal balance has been relatively strong'. 'Private sector debt was more problematic in Ireland, Cyprus, and Spain. Ireland and Cyprus developed large banking sectors, and Spain developed a real estate bubble.' Capital inflows fuelled demand and inflation; rising prices cut the periphery's competitiveness against countries like Germany, 'which pursued policies such as wage restraint'; the periphery ran trade deficits financed by borrowing, 'especially German and French banks'; they 'could not depreciate their currencies'. The debts were exposed in the global financial crisis of 2008-2009; the recession raised spending and cut tax revenue, and 'In some cases, the government also assumed private sector debt, most notably in Ireland where the government guaranteed bank debt.' Overview: 'disagreements among Germany, France, and the ECB over the appropriate crisis response, and complex EU policy-making processes, are seen as having exacerbated anxiety in markets'; in the economies providing assistance there was 'resentment against what is perceived as "bailing out" other countries that have failed to implement "responsible" policy choices'; 'The Eurozone has a common monetary policy and currency, without creating a fiscal union, and therefore it does not have a centralized budget authority or system of fiscal transfers across member states.' Summary: 'Market pressure against the Eurozone eased considerably in the fourth quarter of 2012 and the start of 2013'; the ECB's bond-buying programme announced in September 2012, for countries receiving assistance and carrying out the reforms attached, 'is viewed by many as successful in restoring market confidence'. Footnote 2 to the spreads sentence names the periphery as Greece, Ireland, Italy, Portugal and Spain, and the core as including Austria, Belgium, Germany, Finland, France, Luxembourg and the Netherlands. Added in round 1 (3 Oct 2026): 'The unsustainable nature of the periphery's debt and trade deficits was exposed during the global financial crisis of 2008-2009, when capital markets became less liquid, making it difficult for governments, households, and firms to continue borrowing.' 'Investors became increasingly nervous about public finances in Ireland and Portugal, and as their borrowing costs increased, the two countries also requested European-IMF financial assistance packages'; 'In May 2010, Greece received a financial assistance package from other Eurozone governments and the IMF'; 'European rescue funds are providing loans to the governments of Greece, Ireland, and Portugal, in conjunction with financial assistance from the IMF.' Euro members 'cannot use currency depreciation to promote export-led growth, which some argue has been helpful for other countries'. On the ECB's offer: 'the ECB's public commitment of support bolstered market confidence and caused Italian and Spanish bond yields to fall'. Retrieved 1 October 2026 (series cache dl/crs42377.txt).
European Central Bank, Occasional Paper 144: F. P. Mongelli, The mutating euro area crisis: is the balance between "sceptics" and "advocates" shifting? (February 2013) (One ECB economist's account of the causes, in his own view): https://www.ecb.europa.eu/pub/pdf/scpops/ecbocp144.pdf. All rights reserved; paraphrased, no quotation. The title page says the paper gives the author's views and should not be reported as representing the ECB's. Printed page numbers (printed = PDF page - 1), read from each page's folio. p.5 (executive summary): the author sees the crisis as a mix of several distinct but linked factors, with flaws in the design of monetary union; he holds that responsibility is widely spread and that most economists did not see the crisis coming, and that once it broke out there was no framework for managing it and the quarrelsome policy debate and divided national responses did harm. p.12: the governance agreed for the euro handed monetary policy to the ECB and had no risk-sharing or crisis-resolution arrangements; many US-based academics, Krugman and Feldstein among them, doubted from the start that the euro area could work, citing too little movement of workers and no shared budget like the US federal budget. p.14: the author writes that Ireland and Spain had strengthened their public finances before the crisis; from 1999 to 2007 current account deficits widened by about 6% of GDP or more in Ireland, Spain, Portugal and Greece, while surpluses in Germany and Austria rose by about 6% of GDP. p.15: after the euro's launch large capital flows from other euro area countries passed through the banks of these countries, funding construction in Spain and Ireland. p.18: in early May 2010 the gap between Greek and German ten-year government bond yields reached a record high, which the author calls the point of no return, and Greece took its first EU/IMF programme. p.19: monetary union was set up with no framework to deal with a sovereign debt crisis. Retrieved 3 October 2026 (m10/op144.pdf).
IMF Independent Evaluation Office, The IMF and the Crises in Greece, Ireland, and Portugal (2016) (The evaluators' summary of the explanations, and their view of the Greek decision of 2010): https://ieo.imf.org/en/-/media/ieo/files/evaluations/completed/07-28-2016-the-imf-and-the-crises-in-greece-ireland-and-portugal/eac-full-report.pdf. IMF copyright; paraphrased except one short quotation. Printed page numbers (printed = PDF page - 10), found by searching the PDF page text. Chapter 2. p.8, para 13: the euro was adopted by 11 EU member states on 1 January 1999 and Greece joined on 1 January 2001; the design comprised an independent central bank and fiscal rules. p.8, para 14: the euro brought sovereign bond yields down towards each other, lowering borrowing costs in the periphery. p.8, para 15: academic experts have increasingly come to believe the crisis was set off by 'sudden stops' in cross-border capital flows as the global financial crisis cut appetite for risk; weak public finances were clearly central to Greece's crisis, but on the sudden-stop account, in Baldwin and Giavazzi's words (2015), "the key was foreign borrowing". p.8, footnote 14: citing Gros (2015), whatever the state of their public finances, no country with a current account surplus had a crisis. p.10, para 16: the literature, citing Pisani-Ferry (2011) and Buti and Carnot (2012), identifies two underlying causes: some authors see policy failures in individual countries, such as a lack of fiscal discipline; others see a flaw in the euro's architecture, monetary union without banking, fiscal or political union. p.10, para 16: Baldwin and Giavazzi (2015), whom the evaluators cite, and who call their account the consensus view, say the sudden stop did more damage for four reasons: no national central bank stood behind each government as lender of last resort in its own currency, banks supplied most of the financing, banks and governments dragged each other down, and labour and product markets were rigid. p.10, para 18: a crisis management mechanism was deliberately absent from the euro area, partly to lessen moral hazard, and the treaty barred members from assuming each other's debts. Chapter 3, p.15, para 30: in the evaluators' view the decision to lend to Greece in 2010 without a pre-emptive debt restructuring left the debt doubts unaddressed and made the budget adjustment larger. ieo.imf.org refuses our machines: read from the Internet Archive capture of the original file, https://web.archive.org/web/20251206050247/https://ieo.imf.org/en/-/media/ieo/files/evaluations/completed/07-28-2016-the-imf-and-the-crises-in-greece-ireland-and-portugal/eac-full-report.pdf (captured 6 December 2025, 05:02:47 UTC). Retrieved 3 October 2026 (copy in m8/ieo.pdf).
European Stability Mechanism, Safeguarding the euro in times of crisis: the inside story of the ESM (2019) (The budget rules, Spain's recession, and the ESM's defence of the rescues): https://www.esm.europa.eu/system/files/document/safeguarding-euro-times-crisis-inside-story-esm.pdf. © European Stability Mechanism, 2019. Reproduction is authorised provided the source is acknowledged. Printed page numbers (printed = PDF page - 2), read from each page's folio. Chapter 1. p.14: with rescue funding from the EFSF and the ESM, five of the euro area's 19 members were able to make the reforms they needed, and the rescues were funded at minimal risk and at virtually no direct cost to taxpayers in other euro area countries; the euro area's budget agreements had not held up: in 2003 Germany and France had led an effort to escape sanctions over their own larger deficits, and in their shadow other countries found it easy to put off fiscal adjustment. p.16: euro area countries could not devalue their currencies one by one, and before the global crisis the currency union had no mechanism for helping a member in distress. Chapter 25, p.214 (timeline): in 2008 Spain's economy entered recession as a property and credit bubble that had lasted a decade burst. Retrieved 2 October 2026 (series cache dl/esm2019.pdf).
Eurostat, government consolidated gross debt, Spain, annual (gov_10dd_edpt1) (The chart): https://ec.europa.eu/eurostat/databrowser/view/gov_10dd_edpt1/default/table. Eurostat, CC BY 4.0, credit Eurostat. General government (S13) gross debt, per cent of GDP, Spain, 1999 to 2013. Dataset updated 22 April 2026 (the vintage the contagion module used); retrieved 3 October 2026 through the Eurostat API (m10/es_debt.json). 1999 60.9, 2007 35.7, 2008 39.6, 2013 100.0; the series fell in every year from 1999 to 2007.
All wording is our own. Charts are drawn from the data named under them.