The party once again could be over on Wall Street, depending on how the market responds next year to a decline in the “dollar carry trade.” Since the Federal Reserve last year lowered interest rates to near zero, investors have been borrowing the U.S. dollar in heaps and taking the money overseas to invest in other currencies or assets. This strategy has helped fuel recovery elsewhere, while doing little for the American economy, other than liven up the stock market. “The U.S. dollar carry trade is destructive to our currency, and is creating asset bubbles across the world, as leverage is transferred from our markets into others,” writes David Paul, president of the Fiscal Strategies Group.