His Greatness the Krugman posted this to explain his "aliens" talk connection to traditional Keynesian explanation (by Keynes himself) of how to stimulate downtrotten economy even with a "useless" activity.
http://krugman.blogs.nytimes.com/2011/08/24/coalmines-and-aliens/
I think it's an interesting comparison between Treasury notes and Gold. While traditionally gold is considered that "always worth something" safe asset, I think the real world trading shows that treasury notes are at least as desirable at the moment as gold, and that they are considered one of the safest forms of investment (or is it savings, can't remember).
PS. Title should have been "treasury notes", but in a pirate fashion I like "treasure" as well.
http://krugman.blogs.nytimes.com/2011/08/24/coalmines-and-aliens/
Keynes then goes on to explain that the actual business of gold mining — in which basically useless ore is mined and refined at great cost, then sent to sit idle in the basements of central banks — is for all practical purposes identical to his coalmine idea.
I think it's an interesting comparison between Treasury notes and Gold. While traditionally gold is considered that "always worth something" safe asset, I think the real world trading shows that treasury notes are at least as desirable at the moment as gold, and that they are considered one of the safest forms of investment (or is it savings, can't remember).
PS. Title should have been "treasury notes", but in a pirate fashion I like "treasure" as well.
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