Krugman's recent lectures

Paul Krugman made a tour of Europe recently, and gave the "Robbins" lectures at the London School of Economics.

His first lecture is available here (audio and slides).
His second lecuture is here (audio and slides).
His third and final lecture is here (audio and slides).

All links taken from his blog, but oddly, not from the same posts. As an indication, the first lecture is 76 minutes long.

Why printing money doesn't necessarily cause inflation

Paul Krugman, most recent Nobel laureate for Economics, shows on his blog a lesson from Japan on how increasing the money supply, even by very large amounts WILL NOT CAUSE INFLATION IN A LIQUIDITY TRAP. The key graph I'll include below.

Whilst during a period of inflation, such a monetary expansion would have made things much worse, in a situation like Japan's since 1990, or the Western world's since last summer, it is all you can do to prevent massive, destructive deflation.