by Calculated Risk on 10/14/2012 09:13:00 AM

Bernanke's conclusion is: [US monetary] "policy not only helps strengthen the U.S. economic recovery, but by boosting U.S. spending and growth, it has the effect of helping support the global economy as well."

From Fed Chairman Ben Bernanke: U.S. Monetary Policy and International Implications.

Although the monetary accommodation we are providing is playing a critical role in supporting the U.S. economy, concerns have been raised about the spillover effects of our policies on our trading partners. In particular, some critics have argued that the Fed's asset purchases, and accommodative monetary policy more generally, encourage capital flows to emerging market economies. These capital flows are said to cause undesirable currency appreciation, too much liquidity leading to asset bubbles or inflation, or economic disruptions as capital inflows quickly give way to outflows.

I am sympathetic to the challenges faced by many economies in a world of volatile international capital flows. And, to be sure, highly accommodative monetary policies in the United States, as well as in other advanced economies, shift interest rate differentials in favor of emerging markets and thus probably contribute to private capital flows to these markets. I would argue, though, that it is not at all clear that accommodative policies in advanced economies impose net costs on emerging market economies, for several reasons.

First, the linkage between advanced-economy monetary policies and international capital flows is looser than is sometimes asserted. Even in normal times, differences in growth prospects among countries--and the resulting differences in expected returns--are the most important determinant of capital flows. The rebound in emerging market economies from the global financial crisis, even as the advanced economies remained weak, provided still greater encouragement to these flows. Another important determinant of capital flows is the appetite for risk by global investors. Over the past few years, swings in investor sentiment between "risk-on" and "risk-off," often in response to developments in Europe, have led to corresponding swings in capital flows. All told, recent research, including studies by the International Monetary Fund, does not support the view that advanced-economy monetary policies are the dominant factor behind emerging market capital flows.1 Consistent with such findings, these flows have diminished in the past couple of years or so, even as monetary policies in advanced economies have continued to ease and longer-term interest rates in those economies have continued to decline.

Second, the effects of capital inflows, whatever their cause, on emerging market economies are not predetermined, but instead depend greatly on the choices made by policymakers in those economies. In some emerging markets, policymakers have chosen to systematically resist currency appreciation as a means of promoting exports and domestic growth. However, the perceived benefits of currency management inevitably come with costs, including reduced monetary independence and the consequent susceptibility to imported inflation. In other words, the perceived advantages of undervaluation and the problem of unwanted capital inflows must be understood as a package--you can't have one without the other.

Of course, an alternative strategy--one consistent with classical principles of international adjustment--is to refrain from intervening in foreign exchange markets, thereby allowing the currency to rise and helping insulate the financial system from external pressures. Under a flexible exchange-rate regime, a fully independent monetary policy, together with fiscal policy as needed, would be available to help counteract any adverse effects of currency appreciation on growth. The resultant rebalancing from external to domestic demand would not only preserve near-term growth in the emerging market economies while supporting recovery in the advanced economies, it would redound to everyone's benefit in the long run by putting the global economy on a more stable and sustainable path.

Finally, any costs for emerging market economies of monetary easing in advanced economies should be set against the very real benefits of those policies. The slowing of growth in the emerging market economies this year in large part reflects their decelerating exports to the United States, Europe, and other advanced economies. Therefore, monetary easing that supports the recovery in the advanced economies should stimulate trade and boost growth in emerging market economies as well. In principle, depreciation of the dollar and other advanced-economy currencies could reduce (although not eliminate) the positive effect on trade and growth in emerging markets. However, since mid-2008, in fact, before the intensification of the financial crisis triggered wide swings in the dollar, the real multilateral value of the dollar has changed little, and it has fallen just a bit against the currencies of the emerging market economies.

Conclusion
To conclude, the Federal Reserve is providing additional monetary accommodation to achieve its dual mandate of maximum employment and price stability. This policy not only helps strengthen the U.S. economic recovery, but by boosting U.S. spending and growth, it has the effect of helping support the global economy as well. Assessments of the international impact of U.S. monetary policies should give appropriate weight to their beneficial effects on global growth and stability.

Update note: Emphasis added.