With one foot out of the door of Germany’s finance ministry, the former head of the German economy, Wolfgang Schäuble, 75, delivered a fire and brimstone warning over the weekend, telling the FT in an interview that there was a danger of “new bubbles” forming due to the trillions of dollars that central banks have pumped into markets. Schäuble also warned of risks to stability in the eurozone, particularly those posed by bank balance sheets burdened by the post-crisis legacy of non-performing loans, something we warned about since 2012, and an issue which remains largely unresolved.

Taking a broad swipe at the current financial regime – which he helped design – Schauble warned that the world was in danger of “encouraging new bubbles to form”.

“Economists all over the world are concerned about the increased risks arising from the accumulation of more and more liquidity and the growth of public and private debt. I myself am concerned about this, too,” he said echoing the concern voiced just one day earlier by IMF head Christine Lagarde, who said the world was enjoying its best growth spurt since the start of the decade, but warned of “threats on the horizon” from “high levels of debt in many countries to rapid credit expansion in China, to excessive risk-taking in financial markets”.

And while Schauble’s dramatic warning was not surprising – prominent economists have a habit of telling the truth once their tenure is over, and once they start selling books warning about all the consequences of policies they helped adopt – one day later a more surprising, and just as urgent warning was delivered by the Dutch central bank, DNB, which on Monday said that ultra-loose monetary policy in the euro zone has run its course, and excessive risks seem to be building up in financial markets making the financial sector vulnerable to a sudden correction.

“It increasingly feels uncomfortable to have low volatility in the markets on the one hand while on the other hand there are risks in the global economy,” said Klaas Knot, the president of the Dutch Central Bank, at the presentation of DNB’s biannual financial stability report according to Bloomberg.