During the last half of the 1990s, real gross domestic investment rose as a fraction of real GDP. This resulted from the rise in U.S. productivity and the related rise in the real yield on U.S. assets. This drew additional private capital from abroad. If the twin deficits theory is correct, it...

During the last half of the 1990s, real gross domestic investment rose as a fraction of real GDP. This resulted from the rise in U.S. productivity and the related rise in the real yield on U.S. assets. This drew additional private capital from abroad. If the twin deficits theory is correct, it...

When the U.S. runs a trade deficit with the Chinese, this requires a capital inflow from China to the United States. This, in turn, lowers U.S. interest rates and increases U.S. investment spending. On the negative side, lower priced goods from China may hurt U.S. industries that compete with...