Thanks to the dollar's stability, liquidity and low transaction costs, the U.S. has an edge in attracting capital inflows to finance the current account deficit.

FORBES: No Greenback Crash

Part of the reason is that capital inflows have gone mainly to finance its persistent current-account deficit.

ECONOMIST: Economics focus

America, in turn, has been overly reliant on foreign capital inflows, so as to finance its record current-account deficit.

ECONOMIST: Currencies

The expectation of higher returns on capital in America has attracted foreign money and made it easy to finance America's big current-account deficit in recent years.

ECONOMIST: Productivity growth: To these, the spoils | The