Krugman: Can Japan pull it off?

Can Japan actually end decades of deflation?

Paul Krugman examines former Bank of England Monetary Policy Committee member Adam Posen's attempts to square the circle between his support for expansionary fiscal stimulus in Britain — where it hasn't happened — and opposition to the same in Japan — where it is apparently about to begin.

Posen wrote, in the Financial Times, that:

Mr Abe’s new fiscal stimulus initiative is therefore questionable. Not because another 2 per cent of GDP will be the proverbial tipping point on Japanese debt sustainability, for the factors protecting Japan from overt fiscal crisis remain. Nor because it will be ineffective; if anything, when combined with monetary expansion and a likely consumption tax rise in the near future, I expect its multiplier and thus short-run impact to be high.

The additional stimulus in Japan is counterproductive because it adds to the long-term costs without addressing Japan’s real problem: a return to deflation and an overvalued exchange rate.

Krugman is "a bit puzzled". He agrees that deflation is Japan's problem, because deflation forces short-term interest rates to bump against the lower bound. Since interest rates can't go below zero, that is, they are forced to remain slightly positive. That means that real interest rates — the nominal interest rate plus inflation — are forced to be significantly higher under deflation than they would be with mildly positive inflation, reducing the effectiveness of monetary policy.

So far, so macroeconomics 101. Where Krugman disagrees with Posen is how to break out of the deflation trap. Posen argues that unconventional monetary policy — quantitative easing and the like — can be enough. It's a monetary problem, so it ought to have monetary solutions. But Krugman argues that there may be a better way:

The credibility of a higher inflation target in the face of the deflationary bias of central bankers may well be best established by (a) reducing the central bank’s autonomy and (b) getting the central bank in the business of supporting — indeed, monetizing — government deficits, at least for a while. Gauti Eggertsson made this point long ago (pdf), pointing to Japan’s successful polices in the first half of the 30s as a clear example. Indeed, Gauti argued that having a large government debt can be a real advantage in such circumstances: efforts to raise expected inflation gain extra credibility if the government would clearly benefit in fiscal terms, and the central bank is sufficiently subordinated to elected officials that investors believe that it will take these fiscal benefits into account.

In other words, it all comes back to the question of central bank independence. If the government destroys that independence (even if it does it for paleo-conservative, nationalistic, reasons), and engineers a situation where inflation would make it better-off, then inflation expectations can be raised far higher than an independent central bank could ever do alone. Especially one which has so consistently failed to reverse the trend as the national bank of Japan.

Visiting Japanese Prime Minister Shinzo Abe speaks during a joint press conference held after official talks with his Vietnamese counterpart. Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

Photo: Getty
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What Jeremy Corbyn gets right about the single market

Technically, you can be outside the EU but inside the single market. Philosophically, you're still in the EU. 

I’ve been trying to work out what bothers me about the response to Jeremy Corbyn’s interview on the Andrew Marr programme.

What bothers me about Corbyn’s interview is obvious: the use of the phrase “wholesale importation” to describe people coming from Eastern Europe to the United Kingdom makes them sound like boxes of sugar rather than people. Adding to that, by suggesting that this “importation” had “destroy[ed] conditions”, rather than laying the blame on Britain’s under-enforced and under-regulated labour market, his words were more appropriate to a politician who believes that immigrants are objects to be scapegoated, not people to be served. (Though perhaps that is appropriate for the leader of the Labour Party if recent history is any guide.)

But I’m bothered, too, by the reaction to another part of his interview, in which the Labour leader said that Britain must leave the single market as it leaves the European Union. The response to this, which is technically correct, has been to attack Corbyn as Liechtenstein, Switzerland, Norway and Iceland are members of the single market but not the European Union.

In my view, leaving the single market will make Britain poorer in the short and long term, will immediately render much of Labour’s 2017 manifesto moot and will, in the long run, be a far bigger victory for right-wing politics than any mere election. Corbyn’s view, that the benefits of freeing a British government from the rules of the single market will outweigh the costs, doesn’t seem very likely to me. So why do I feel so uneasy about the claim that you can be a member of the single market and not the European Union?

I think it’s because the difficult truth is that these countries are, de facto, in the European Union in any meaningful sense. By any estimation, the three pillars of Britain’s “Out” vote were, firstly, control over Britain’s borders, aka the end of the free movement of people, secondly, more money for the public realm aka £350m a week for the NHS, and thirdly control over Britain’s own laws. It’s hard to see how, if the United Kingdom continues to be subject to the free movement of people, continues to pay large sums towards the European Union, and continues to have its laws set elsewhere, we have “honoured the referendum result”.

None of which changes my view that leaving the single market would be a catastrophe for the United Kingdom. But retaining Britain’s single market membership starts with making the argument for single market membership, not hiding behind rhetorical tricks about whether or not single market membership was on the ballot last June, when it quite clearly was. 

Stephen Bush is special correspondent at the New Statesman. His daily briefing, Morning Call, provides a quick and essential guide to domestic and global politics.