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Sovereign Debt and Fiscal Integration in the European Union

Author

Listed:
  • Zsolt Darvas
  • Lennard Welslau
  • Jeromin Zettelmeyer

Abstract

This paper examines sovereign debt risks in the European Union, which has centralized monetary policy within the euro area, while fiscal policies remain national. Institutional reforms, including common banking supervision, the European Stability Mechanism, the European Central Bank's market-stabilisation instruments, and a new set of fiscal rules, have mitigated vulnerabilities arising from the interdependence between banks and sovereigns. Stochastic debt sustainability analysis suggests that debt remains sustainable in most EU countries, although substantial fiscal adjustments will be required in some cases. Fiscal reaction function estimates, however, reveal a weakening policy response to rising debt, signalling increased medium-term risks. The paper argues that further adaptation of fiscal rules is needed to encourage investment and provide greater flexibility for low-risk countries. Expanding the pool of common EU safe assets could also help break the bank-sovereign doom-loop, attract foreign investors, and strengthen fiscal sustainability.

Suggested Citation

  • Zsolt Darvas & Lennard Welslau & Jeromin Zettelmeyer, 2025. "Sovereign Debt and Fiscal Integration in the European Union," Journal of Economic Perspectives, American Economic Association, vol. 39(4), pages 49-74, Fall.
    • Handle: RePEc:aea:jecper:v:39:y:2025:i:4:p:49-74
    DOI: 10.1257/jep.20251451
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    More about this item

    JEL classification:

    • E23 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Production
    • E31 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles - - - Price Level; Inflation; Deflation
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy; Modern Monetary Theory
    • F33 - International Economics - - International Finance - - - International Monetary Arrangements and Institutions
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • H63 - Public Economics - - National Budget, Deficit, and Debt - - - Debt; Debt Management; Sovereign Debt

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