The European Central Bank is on a "slippery slope" and has in his view fatally compromised the system by bailing out bankrupt states in palpable violation of the treaties.

"The Stability and Growth Pact has more or less failed. Market discipline is done away with by ECB interventions. So there is no fiscal control mechanism from markets or politics. This has all the elements to bring disaster for monetary union.

"The no bailout clause is violated every day," he said, dismissing the European Court's approval for bailout measures as simple-minded and ideological.

The ECB has "crossed the Rubicon" and is now in an untenable position, trying to reconcile conflicting roles as banking regulator, Troika enforcer in rescue missions and agent of monetary policy. Its own financial integrity is increasingly in jeopardy.