Aparadox lurks in the foundations of the eurozone. Governments in the monetary union lack a central bank that has their back, while the central bank lacks a government to support it.

This paradox cannot be eliminated without fundamental institutional changes. But there are steps member states can take to ameliorate some of its negative effects. One such step that we contemplated during my tenure at the Greek ministry of finance focused on the chronic liquidity shortage of a stressed public sector and its impact on the long-suffering private sector.

In Greece, where the central bank is unable to support the state’s endeavours, government arrears to the private sector — both companies and individuals — have been a drag on the economy, adding to deflationary pressures since as far back as 2008. Such arrears consistently exceeded 3 per cent of gross domestic product for five years.