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24 September 2022

Vox/CEPR: The ECB’s asset purchase programme granted debt sustainability in the pandemic. Its termination should not derail it


The pandemic threatened to spark another debt crisis in the euro area. Instead, it prompted a strong fiscal response that buffered the shock and underpinned a shift recovery.


The ECB’s policy reaction was crucial in the outcome, in particular through its massive asset purchase programme, the Pandemic Emergency Purchase Programme. Using a stochastic approach, this column shows that the programme has kept debt sustainable and that it will remain so with a high probability, even if the programme is reversed.

The end of the ECB’s Pandemic Emergency Purchase Programme (PEPP) amid increasing inflation has brought again to the fore fiscal concerns in the euro area that remained dormant during the pandemic (Corsetti and Codogno 2021). High debt and its sustainability are at the core of those concerns and feed into the policy debate. On the fiscal side, discipline and adjustment are rising in the European discussion. On the monetary side, the ECB is navigating a narrow path, tightening monetary policy and attempting to dispel fears of diverging financing costs and fragmentation within the euro area (Reichlin et al. 2022). Against this backdrop, understanding the impact of PEPP and – even so more at the current juncture – of its termination on debt sustainability is a central policy issue.

In this column, we analyse the effects of PEPP on the debt dynamics of highly indebted eurozone countries. We apply the methodology developed in Alberola et al. (2022) that embeds the estimation of the spread compression induced by the asset purchases in a stochastic debt sustainability analysis (DSA).

Euro area sovereign debt has reached new peaks after the pandemic. The average debt-to-GDP ratio of the three large highly indebted countries that we analyse – Italy, Spain, and Portugal – surged 25 points in 2020 to surpass 130% of GDP (Figure 1). In contrast to the euro crisis of 2012, sovereign spreads only increased briefly at the onset of the pandemic to decrease sharply afterwards. The unprecedented interventions by the ECB, especially through the PEPP, were key to this outcome; the programme also created the fiscal space to implement a massive fiscal expansion to face the crisis at the national and EU-wide level. As the programme expired, debt sustainability concerns have resurfaced amid increasing spreads, inflation, and a tightening of monetary policy.....

Figure 1 Announcements and implementation of ECB asset purchases have an impact on spreads.

Figure 1 Announcements and implementation of <a href=ECB asset purchases have an impact on spreads" title="" style="" role="" width="905" height="619">

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