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The impact of high and growing government debt on economic growth: an empirical investigation for the euro area

Checherita-Westphal, Cristina and Philipp Rother
Authors registered in the RePEc Author Service: Cristina Checherita Westphal

No 1237, Working Paper Series from European Central Bank

Abstract: This paper investigates the average impact of government debt on per-capita GDP growth in twelve euro area countries over a period of about 40 years starting in 1970. It finds a non-linear impact of debt on growth with a turning point—beyond which the government debt-to-GDP ratio has a deleterious impact on long-term growth—at about 90-100% of GDP. Confidence intervals for the debt turning point suggest that the negative growth effect of high debt may start already from levels of around 70-80% of GDP, which calls for even more prudent indebtedness policies. At the same time, there is evidence that the annual change of the public debt ratio and the budget deficit-to-GDP ratio are negatively and linearly associated with per-capita GDP growth. The channels through which government debt (level or change) is found to have an impact on the economic growth rate are: (i) private saving; (ii) public investment; (iii) total factor productivity (TFP) and (iv) sovereign long-term nominal and real interest rates. From a policy perspective, the results provide additional arguments for debt reduction to support longer-term economic growth prospects. JEL Classification: H63, O40, E62, E43

Keywords: economic growth; fiscal policy; public debt; sovereign long-term interest rates (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-cba, nep-eec and nep-fdg
Date: 2010-08
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