wedrifid comments on Q for GiveWell: What is GiveDirectly's mechanism of action? - Less Wrong

16 Post author: Eliezer_Yudkowsky 31 July 2013 08:02PM

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Comment author: wedrifid 31 January 2014 08:46:03PM 1 point [-]

Do you just mean that you can't encourage people to hold less than 0 money?

Technically. But the 'just' is a tad misleading. I mean that if money1, money2 and money3 behave in similar ways and can be freely exchanged between each other then adding fees to holding money1 will have a limited effect on how much (money1 + money2 + money3) is held. It's a lever without a natural fulcrum.

(Note that this is not intended as a criticism of Market Monetarism itself, just of the specific Wikipedia excerpt. Where your words spoken here in the name of Market Monetarism raise that theory's credibility, the wikipedia quote lowered it.)

This is a good approximation of what Market Monetarists are saying with respect to interest on reserves.

Pardon me. English's reference system leaves a lot to be desired. What 'this' is this? The stuff about not subsidising?

Comment author: jsalvatier 31 January 2014 10:11:28PM *  0 points [-]

Ah, I think I understand you now. Yes, if you have very close substitutes, making one less desirable will just push people into holding more of the others and not much less of the aggregate.

This is certainly a problem for physical cash vs. reserves with the fed, though less than it seems, I think because the return on cash has to take into account storage and security costs.

People also sometimes think that this applies to holding cash vs short term government debt, but government debt isn't a medium of exchange, which makes it not a very close substitute for money.

English's reference system leaves a lot to be desired.

Sorry, I meant

If the Market Monetarists mean to say that they oppose the Fed doing things that in effect amount to subsidizing holding money then I tend to agree.