Other governments face a tougher choice as inflows spark inflation that makes rate cuts riskier.

WSJ: Review & Outlook: Abenomics Hits the Neighbors

Oftentimes news of a falling dollar and wider deficits will spark a stock rally, and the issues barely rate a mention in a presidential debate.

FORBES: Fears That Sparked Black Monday In 1987 Dormant But Not Dead

But that interest rate was enough to help burst the housing bubble and to spark an international credit crisis.

FORBES: Bernanke: 60 Minutes, 2 Big Lies

Mr Heitler says requests at that low rate generally go unanswered, though two cents a query seems to spark interest.

ECONOMIST: Monitor