The Dollar Joins the Currency Wars

NEW YORK – In a world of weak domestic demand in many advanced economies and emerging markets, policymakers have been tempted to boost economic growth and employment by going for export led-growth. This requires a weak currency and conventional and unconventional monetary policies to bring about the required depreciation.

Since the beginning of the year, more than 20 central banks around the world have eased monetary policy, following the lead of the European Central Bank and the Bank of Japan. In the eurozone, countries on the periphery needed currency weakness to reduce their external deficits and jump-start growth. But the euro weakness triggered by quantitative easing has further boosted Germany’s current-account surplus, which was already‎ a whopping 8% of GDP last year. With external surpluses also rising in other countries of the eurozone core, the monetary union’s overall imbalance is large and growing.

In Japan, quantitative easing was the first “arrow” of “Abenomics,” Prime Minister Shinzo Abe’s reform program. Its launch has sharply weakened the yen and is now leading to rising trade surpluses.

The upward pressure on the US dollar from the embrace of quantitative easing by the ECB and the BOJ has been sharp. The dollar has also strengthened against the currencies of advanced-country commodity exporters, like Australia and Canada, and those of many emerging markets. For these countries, falling oil and commodity prices have triggered currency depreciations that are helping to shield growth and jobs from the effects of lower exports.
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 Nouriel Roubini is an American professor of Economics at New York University`s Stern School of Business and chairman of RGE Roubini Global Economics