By Laurence Knight Business reporter, BBC NewsIt wasn't supposed to be like this.The European Central Bank was supposed to be the world's most independent central bank, beholden to nobody.
It has a clear, unambiguous mandate to pursue price stability, and ignore everything else.
Rescuing banks, rescuing over-indebted governments, demanding painful economic reforms - these things were supposed to be for the national governments to do.
The hard-nosed economists in Frankfurt were supposed to be above politics.
Yet now, it is looking increasingly obvious that the European Central Bank will have to rescue Italy from its debt crisis if the eurozone is to survive.
And other countries - Spain, perhaps even France - could well follow.
How did we get to this point?
Voodoo child Europe's governments have tried their best to contain the crisis without turning to the ECB for help.
When Greece went down in early 2010, Germany, France and the others clubbed together for the money to rescue it.
As Portugal and the Irish Republic looked increasingly shaky, they came up with a more worked-out solution - the European Financial Stability Facility (EFSF).
The eurozone's bailout fund has already been called on to save both countries, as well as to foot a second rescue package for Greece.
The guarantees from Berlin, Paris and the others that underpin the fund have been augmented once, to ensure that all 440bn (£342bn) euros can be lent out.
Now there is agreement to use financial voodoo to "leverage" the fund's resources to a further 1tn euros - about 3,000 euros per person in the eurozone.
But it looks like all the painful negotiations have been for nought.
Dead on arrival The specifics of exactly how the EFSF's firepower can be increased, without asking German taxpayers to cough up more money, have thus far eluded Europe's politicians.
Europe asked China to cough up the money that Germany would not, but without success
When a begging bowl was taken to China, it failed even to collect kind words, let alone the extra cash needed.
But even if they do succeed within the rapidly shrinking window of time available, a 1tn euros fund is probably still too small.
After taking account of all the EFSF's other existing obligations, it is not even enough to cover a single year's worth of Italy's debt repayments,
as BBC editor Robert Peston has pointed out.
Moreover, the bailout fund looks to have failed before it has barely even got started.
Last week, the EFSF finally got away a postponed debt issuance to raise money for the Irish bailout.
But the surprisingly high interest rate it paid - one and three-quarter percentage points more than the German government - suggested that markets are sceptical about the government guarantees behind the fund.
Its head, Klaus Regling,
admitted to the Financial Times this week that recent market turmoil was causing it trouble.
And markets have good reason to doubt.
After all, all the EFSF can do is transfer the debt burden from countries that cannot afford it to others that supposedly can.
But now markets are asking questions about whether those other countries - notably France - really can stump up their share of the collective bill.
Albatross From the beginning, the obvious solution to the crisis -
as many economist have been loudly shouting - is for the ECB to weigh in.
As the central bank, it is the gatekeeper of the eurozone's money supply. So it can simply create out of thin air the cash that is needed to rescue Italy.
If the ECB stood unambiguously behind Italy, by making an unlimited commitment to buy up the country's debts, then investors' worries about whether those debts can be repaid should evaporate.
Germany's interwar experience of hyperinflation makes price stability an emotive issue Of course, printing money does not solve the longer-term problems that got Italy (and other southern Europeans) into their current pickle in the first place.
It does not cut Italian wages to more competitive levels. It does not make Italy's debts or overspending disappear. And it does not break the albatross-like stranglehold of vested business interests on much of the Italian economy.
But it will help. Because the longer the crisis goes on, the more that business confidence, consumer confidence and confidence in Europe's banks collapses, and therefore the more collateral damage is done to Europe's economy.
And a recession right now will make Italy's economic problems even harder to solve.
Cultural divide So why is the ECB so reluctant to intervene?
A large part of the reason is a cultural divide in Europe that dates back to the interwar period.
To state the obvious, Germany had a very different interwar experience to the rest of Europe.
Elsewhere in Europe, the lesson learned was that sticking to a "hard money" policy - in those days the promise that your currency was backed by gold held in the central bank's vault - can push your economy into a depression.
In Germany, in contrast, the lesson was that printing money to repay an excruciating debt burden leads to hyperinflation, which in turn leads to an angry political backlash that must never be repeated.
Germany's hard money approach - a strong Deutschmark coupled with disciplined government spending - served it well during its post-War Wirtschaftswunder.
So when the euro was founded, Germany insisted on complete independence for the ECB, as well as a "stability" pact of strict limits on government borrowing - until Germany itself later broke the rules with impunity.
German explanation The cultural divide lies behind much of Germany's reaction to the current crisis.
It explains Germany's insistence on government spending cuts for all - including itself - even though Keynesian economists say this is a sure-fire way of pushing the entire eurozone economy into a dangerous downward spiral.
It explains why Germans at the ECB opposed even the limited interventions by the central bank to buy up troubled Spanish and Italian debts - to the extent that two of the most senior Germans resigned in protest.
It explains their resistance to cutting interest rates to boost the eurozone economy, because they fear it would let the inflation genie out of the bottle.
Economists say Italy has failed to enact economic reforms that would hurt vested business interests However,
some economists argue that a higher inflation rate is actually exactly what is needed in the eurozone, in order to help Italian and other workers regain their competitive advantage against German workers.
Germans may well point out that when the euro was created over a decade ago, they were the ones whose wages were uncompetitively expensive.
They solved the problem through unpopular labour market reforms and years of stagnant wages. So why can southern Europeans not do the same now?
There are three reasons. First, Germany has a system of centralised wage negotiations unmatched by other countries, which made it much easier to negotiate with its unions what was in effect a national wage freeze.
Secondly, Germans are not homeowners. They mostly rent their properties. This means that, unlike in for example Spain, Germany has not experienced a mortgage debt-fuelled property bubble. When you have little debt, it is much easier to live with a stagnant income.
Thirdly, Germany actually benefited from the debt-fuelled boom in its southern European export markets. But in the current stagnant global economy, it is unlikely Germany - or anyone else - will return the favour and help southern Europeans export their way to recovery.
Playing chicken Nonetheless, the Germans have a point. While the ECB's role in solving the debt crisis is necessary, it is certainly not sufficient.
The Italians must play their part by getting their finances under control, and - far more importantly - by reforming their economy to make it more competitive and less under the sway of the kind of cosy business interests embodied by their outgoing prime minister.
That leaves the ECB and Italy in a dangerous game of chicken.
It has suited Mario Draghi to take a German line on his home country The ECB doesn't want to budge until it is clear that Italy is serious about reform.
Nor does it want to dictate to Italy what reforms it must undertake - the ECB, after all, does not do politics. That is why the International Monetary Fund has now been called in, in an advisory capacity.
But any Italian government would be crazy to push through unpopular reforms unless it is assured that the ECB will ultimately come to its rescue.
In a game of chicken, the best tactic is to convince your opponent that you are crazy enough to risk a catastrophe.
So it has suited Mario Draghi - the ECB's new Italian head - to take a "German" line on no bailouts for Italy, and let the current Italian leg of the financial crisis ensue.
He needs to convince the Italians that they must blink first.
But if the Italians prove incapable of putting together a government with the nerve to do what is required, the question is will the ECB blink first?
Time will tell.
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