On a real trade weighted basis, the dollar is down about 13 relative to its value in March 2006.

Investors remain willing to finance the US at rock bottom interest rates, and the nominal trade weighted index of the dollar has not collapsed.

Over the past six years, the value of the trade weighted dollar has fallen by more than a quarter, as the US has continued to rack up historically unprecedented trade deficits.

The first answer, of course, is that the trade weighted dollar has fallen by more than 15 in real terms since its peak in early 2002.

The dollar, in particular, is likely to continue falling on a trade weighted basis if investors around the world continue to set aside the extreme risk aversion that caused the dollar s rise after 2007.

Dollar depreciation improves Europe s terms of trade and real income.

The euro's dizzying trade weighted ascent over the past year is, indeed, exacerbating near term pressures within the EU.

So, on an overall trade weighted basis, the renminbi is substantially higher relative to the currencies with which it competes.

The dollar is declining because only a more competitive dollar can shrink the US trade deficit to a sustainable level.

But what is that sustainable level of the trade balance and of the dollar?

And, while the Chinese yuan has remained more or less unchanged relative to the US dollar in the past year, the dollar s sharp appreciation relative to the euro and other currencies caused the overall trade weighted value of the yuan to rise.

Is the dollar on the way out as the world's unchallenged reserve and trade currency?

An alternative approach is to use a GDP weighted benchmark.

And you can also trade real hundred dollar bills for fake hundred dollar bills and make a donation to the Hundred Dollar Laptop Project, which is now known as One Laptop Per Child.

The weaker dollar also reduces the risk of future dollar decline, because it means that the dollar has to fall less in the future to shift the trade balance to a sustainable level.

The yen s depreciation versus the dollar has contributed to continuing large US trade deficits with Japan.

Here, greater scope for weighted and double majority voting is crucial.

According to the ECB s model, the euro s 10 depreciation over the past year (in real, trade weighted terms) may lift growth this year by a mere 0.2 .

Second, since the US has a large trade deficit that can only be cured by a more competitive dollar (while the euro zone countries collectively have a trade surplus), investors expect a trend decline in the dollar.

Some have suggested that the trade imbalance is related to China s currency peg to the US dollar.

Indeed, the Treasury s only explicit currency goal now is to press the Chinese to raise the value of the renminbi, thereby reducing the dollar s global trade weighted average.

Currently, the US dollar remains dominant. Most US exports and imports are denominated in dollars, and the dollar is extensively used in trade that does not involve America.

That means that the dollar must fall substantially further to shrink the trade deficit to a sustainable level.

Relative to the US dollar, an equal weighted basket of 10 major Asian currencies (excluding Japan) has retraced the crisis related distortions of 2008 2009 and has now returned to pre crisis highs.

First, a weaker dollar is associated with a higher dollar price for commodities, which implies a drag on the trade balance, because the US is a net commodity importing country.

First, a weaker dollar is associated with a higher dollar price for commodities, which implies a drag on the trade balance, because the US is a net commodity importing country.

Weighted least squares A special case of generalized least squares called weighted least squares occurs when all the off diagonal entries of Ω (the correlation matrix of the residuals) are 0.

Bottom Dollar

Its exchange rate regime, which pegs the Renminbi to the US dollar, was blamed for the mounting US trade deficit.

Empirical studies estimate that the overall impact of a weaker US dollar on the trade balance is close to zero.

The dollar, in particular, is likely to continue falling on a trade weighted basis if investors around the world continue to set aside the extreme risk aversion that caused the dollar s rise after 2007. Once the Chinese are confident about their domestic growth rate, they can allow the real value of the renminbi to rise.

It's counter weighted so that when you push the door up, it glides really easily.

Sally exchanged a twenty dollar bill for five dollar bills.

Sally exchanged a twenty dollar bill for five dollar bills.

In the case of the US, heavy dependence on imported oil has worsened the trade deficit and further weakened the dollar.

The fact is that a weaker dollar resulting from lower interest rates gives the US a slight competitive advantage in trade.

Ukraine s Dollar Addiction

Whither the Dollar?

China s Dollar Problem

The Falling Dollar

After the Dollar

Regulators are already talking about imposing leverage ratios, as well as limits on risk weighted assets.

Many others generate only slightly more than a dollar per dollar spent.

So the dollar would have to stay at its current level to continue to create the large trade deficit and resulting capital inflow.

By my calculations, the dollar still needs to go down another 15 if the US trade deficit is to go back towards balance.