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Feldstein wants to see a stronger dollar, that is less inflation eroding the value or purchasing power of the dollar at home. Abroad he wants to see a weaker dollar in relation to Europe, Japan and Canada where about half of US imports originate. And a weaker dollar in relation to lower wage Asian countries to improve America's trade balance. Better to do this now than to wait a few years when the adjustments needed would be greater. America needs to export more and import less to improve the trade balance. A competitive dollar in relation to trading partners in Europe and Asia would provide the improvement in the trade balance that the U.S. needs for keeping economic growth. With the risks to the economy from declining housing prices improving the trade balance becomes important. During the 1985-1988 period the dollar declined in value significantly, falling 37%, but the inflation rate averaged 3.1%,says Feldstein. This is what he means by having astrong dollar at home, which is to say not eroding its purchasing value, while at the same time increasing exports and reducing imports. During this period merchandise exports increased by 40% while imports increased at half that pace. A repeat of that experience is possible and necessary to maintain growth, according to Feldstein. See the link to McKinnon, at Stanford, The Yuan and the Greenback, WSJ, August 29, 2006, which cautions against anything but a very gradual and carefully managed appreciation of the yuan, giving importance to inflation and interest rate differentials between the US and China. One point to note narrowing of interest rate differentials between the US and China is seen as backdrop for dollar weakening on exchange rate basis. McKinnon appears to consider a smaller interest rate differential as a cue for an even lower appreciation of the yuan, see his example of 2% inflation in the US and 3% interest rates. Interestingly the two approaches may complement each other. Offering a perspective of China maintaining its growth and not risking deflation or slowdown, and of the US maintaining its growth and not risking a slowdown from the housing market collapse, by strong domestic investment and exports. How to keep both economies going may be the policymakers challenge for strong global economic growth.