Dispatches from the Currency Wars

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The value of the yen has fallen sharply since November, owing to the monetary component of Japan’s efforts to jump-start its economy (“Abenomics”).  Thus the issue of currency wars is expected to feature on the agenda at the G-8’s upcoming summit in Enniskillen, UK, June 17-18.

The phrase “currency wars” is catchy.  But does it have genuine analytical content?   It is another way of saying “competitive devaluation.”  To use the language of IMF Article IV(1) iii, it is what happens when countries are “manipulating exchange rates…to gain an unfair competitive advantage over other members…” To use the language of the 1930s, this manipulation would be a kind of beggar-thy-neighbor policy, with each country seeking to shift net exports toward its own goods at the expense of its neighbors. read more

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On Whose Research is the Case for Austerity Mistakenly Based?

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Several of my colleagues on the Harvard faculty have recently been casualties in the cross-fire between fiscal austerians and stimulators.   Economists Carmen Reinhart and Ken Rogoff have received an unbelievable amount of press attention, ever since they were discovered by three researchers at the University of Massachusetts to have made a spreadsheet error in the first of two papers that examined the statistical relationship between debt and growth.   They quickly conceded their mistake.

Then historian Niall Ferguson, also of Harvard, received much flack when — asked to comment on Keynes’ famous phrase  “In the long run we are all dead” — he “suggested that Keynes was perhaps indifferent to the long run because he had no children, and that he had no children because he was gay.”   read more

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Nominal GDP Targeting is Left, Right?

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The recent surge in interest in Nominal GDP Targeting, as an alternative to money targeting or inflation targeting if the central bank is to commit to a nominal target of some sort, has prompted some pushback.   This is not surprising.  But one of the responses is most peculiar.  This is the allegation (1) that the surge comes from liberals opportunistically adopting an idea that was originally proposed by conservatives, and (2) that they will not stick with this “fad” in the longer run because it is only designed to fit current circumstances of high unemployment and low output.   Remarkably, every component of this argument is wrong. read more

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