Much Ado About a Weak Dollar

Since last week's the freak-out about a weak dollar, cooler heads have responded. Paul Krugman led the way this week with a strong (targeted) critique of the idea, coming from regional Federal Reserve banks, that the Fed's Open Market Committee should make "an early return to tighter money, including higher interests rates." Krugman doesn't think that the raising rates makes sense at all:

After all, the unemployment rate is a horrifying 9.8 percent and still rising, while inflation is running well below the Fed’s long-term target. This suggests that the Fed should be in no hurry to tighten — in fact, standard policy rules of thumb suggest that interest rates should be left on hold for the next two years or more, or until the unemployment rate has fallen to around 7 percent.

Yet some Fed officials want to pull the trigger on rates much sooner. To avoid a "Great Inflation," says Charles Plosser of the Philadelphia Fed, "we will need to act well before unemployment rates and other measures of resource utilization have returned to acceptable levels." Jeffrey Lacker of the Richmond Fed says that rates may need to rise even if "the unemployment rate hasn’t started falling yet."

I don't know what analysis lies behind these itchy trigger fingers. But it probably isn’t about analysis, anyway — it’s about mentality, the sense that central banks are supposed to act tough, not provide easy credit.

And it's crucial that we don’t let this mentality guide policy. We do seem to have avoided a second Great Depression. But giving in to a modern version of our grandfathers' prejudices would be a very good way to ensure the next worst thing: a prolonged era of sluggish growth and very high unemployment.

Martin Wolf sees the dollar not as weakening, but as correcting itself in the wake of the financial crisis. Both he and Krugman point out that the reason the dollar’s value increased so much was because investors ran to it as the world melted down. Both think the correction is a good thing; Krugman because it means growing confidence in the stability of the global economy, while Wolf says:

The dollar's correction is not just natural; it is helpful. It will lower the risk of deflation in the US and facilitate the correction of the global "imbalances" that helped cause the crisis. I agree with a forthcoming article by Fred Bergsten of the Peterson Institute for International Economics that "huge inflows of foreign capital to the US facilitated the over-leveraging and underpricing of risk".* Even those who are sceptical of this agree that the US needs export-led growth.

Finally, what can replace the dollar? Unless and until China removes exchange controls and develops deep and liquid financial markets – probably a generation away – the euro is the dollar's only serious competitor. At present, 65 per cent of the world’s reserves are in dollars and 25 per cent in euros. Yes, there could be some shift. But it is likely to be slow. The eurozone also has high fiscal deficits and debts. The dollar will exist 30 years from now; the euro's fate is less certain.

…

The global role of the dollar is not in the interests of the US. The case for moving to a different system is very strong. This is not because the dollar's role is now endangered. It is rather because it impairs domestic and global stability. The time for alternatives is now.

Plus, Ezra Klein says language is the problem and the Economist says to leave the dollar alone right now.