Wednesday 29th April 2015 Illustrations by Mark Long, Design by Sam Morris and Chris Clarke

n May 2010, as Britain headed into its last general election, elites all across the western world were gripped by austerity fever, a strange malady that combined extravagant fear with blithe optimism. Every country running significant budget deficits – as nearly all were in the aftermath of the financial crisis – was deemed at imminent risk of becoming another Greece unless it immediately began cutting spending and raising taxes. Concerns that imposing such austerity in already depressed economies would deepen their depression and delay recovery were airily dismissed; fiscal probity, we were assured, would inspire business-boosting confidence, and all would be well.

People holding these beliefs came to be widely known in economic circles as “austerians” – a term coined by the economist Rob Parenteau – and for a while the austerian ideology swept all before it.

But that was five years ago, and the fever has long since broken. Greece is now seen as it should have been seen from the beginning – as a unique case, with few lessons for the rest of us. It is impossible for countries such as the US and the UK, which borrow in their own currencies, to experience Greek-style crises, because they cannot run out of money – they can always print more. Even within the eurozone, borrowing costs plunged once the European Central Bank began to do its job and protect its clients against self-fulfilling panics by standing ready to buy government bonds if necessary. As I write this, Italy and Spain have no trouble raising cash – they can borrow at the lowest rates in their history, indeed considerably below those in Britain – and even Portugal’s interest rates are within a whisker of those paid by HM Treasury.

All of the economic research that allegedly supported the austerity push has been discredited

On the other side of the ledger, the benefits of improved confidence failed to make their promised appearance. Since the global turn to austerity in 2010, every country that introduced significant austerity has seen its economy suffer, with the depth of the suffering closely related to the harshness of the austerity. In late 2012, the IMF’s chief economist, Olivier Blanchard, went so far as to issue what amounted to a mea culpa: although his organisation never bought into the notion that austerity would actually boost economic growth, the IMF now believes that it massively understated the damage that spending cuts inflict on a weak economy.

Meanwhile, all of the economic research that allegedly supported the austerity push has been discredited. Widely touted statistical results were, it turned out, based on highly dubious assumptions and procedures – plus a few outright mistakes – and evaporated under closer scrutiny.

It is rare, in the history of economic thought, for debates to get resolved this decisively. The austerian ideology that dominated elite discourse five years ago has collapsed, to the point where hardly anyone still believes it. Hardly anyone, that is, except the coalition that still rules Britain – and most of the British media.

I don’t know how many Britons realise the extent to which their economic debate has diverged from the rest of the western world – the extent to which the UK seems stuck on obsessions that have been mainly laughed out of the discourse elsewhere. George Osborne and David Cameron boast that their policies saved Britain from a Greek-style crisis of soaring interest rates, apparently oblivious to the fact that interest rates are at historic lows all across the western world. The press seizes on Ed Miliband’s failure to mention the budget deficit in a speech as a huge gaffe, a supposed revelation of irresponsibility; meanwhile, Hillary Clinton is talking, seriously, not about budget deficits but about the “fun deficit” facing America’s children.

Is there some good reason why deficit obsession should still rule in Britain, even as it fades away everywhere else? No. This country is not different. The economics of austerity are the same – and the intellectual case as bankrupt – in Britain as everywhere else.