Whether central banks should respond to asset-price bubbles is one of the hottest debates in monetary policy.

ECONOMIST: Who could fill Alan Greenspan's shoes?

In Mundell's writings about a one-world currency, there's a strong preference for a Greenspan-style monetary policy, where price stability is the only goal.

FORBES: Magazine Article

Winmill points at the debt ceiling debate as one of the factors helping to push the price of gold higher, recognizing that along with ultra-loose monetary policy, the government is running out of tools to bring down unemployment rates that have crept past 9%.

FORBES: With Gold Set To Peak At $1,700, Miners Like Goldcorp Look Cheap

At the Bank of Japan's October monetary-policy meeting, Nobuyuki Nakahara, one of the independent members of the bank's policy board, proposed that the bank set a price-level target and examine ways to buy foreign bonds.

ECONOMIST: The yen