Jiro comments on Stupid Questions February 2015 - Less Wrong

9 Post author: Gondolinian 02 February 2015 12:36AM

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Comment author: Jiro 02 February 2015 10:14:03PM 3 points [-]

The existence of this prohibition DOES change the behavior of the seller -- he no longer spends his time standing in the middle of the desert with a glass of water.

There are several ways in which the behavior of the seller changes. Some may benefit the buyer (as in your anti-gouging example) but some may not (such as if the guy with the glass of water would have had one anyway). Furthermore, there is no reason to believe that the benefit you describe happens only at the market price; it may be that people in the area are willing to pay 50 times the normal price for lumber, but 20 times is sufficient to incentivize you to truck in a load of lumber.

Comment author: Lumifer 02 February 2015 10:22:25PM 4 points [-]

here is no reason to believe that the benefit you describe happens only at the market price

Sigh. Why do you think central planning failed?

Comment author: gjm 03 February 2015 01:04:08AM 10 points [-]

I think this discussion would be both more pleasant and more productive (at least for people who are not you) with a higher engagement-to-sneering ratio.

Comment author: Lumifer 03 February 2015 05:44:07PM 9 points [-]

That's not sneering, that's shortcutting. If you wish, I'll unroll.

One of the primary functions of the markets is price discovery. It is really important for the economy that the markets discover prices which then form the basis for future resource allocation.

The classic conceit of the central planner is that he doesn't need to learn the market prices -- he knows better and can allocate resources without all these unfair, chaotic, and messy markets.

In this subthread Jiro feels he doesn't need market prices -- he thinks it would be better if he set fixed prices (or floors or ceilings) based on his perceptions of fairness (see organs) or on what he thinks will be sufficient incentives (see lumber). That looks to me to much like the central planner conceit.

The problem, of course, is that central planning has been shown, empirically, to work badly in real life. The issue then becomes why does Jiro think that his scheme will do much better. Thus the question: why does Jiro thinks central planning has failed and why does he believe that his price manipulation will avoid that fate?

Comment author: [deleted] 03 February 2015 05:57:07PM *  2 points [-]

Agreed, Jiro is making this error. They postulates a situation where people pay (they say "willing to pay," but clearly is not talking about consumer surplus) 50, but 20 is enough. What Jiro and readers should wonder is why people are paying so much more than necessary to get what they want, and how Jiro knows this but the people in the actual situation do not.

Comment author: CellBioGuy 03 February 2015 07:00:30PM 0 points [-]

Not exactly. The assertion is that you dont have to go all the way to equilibrium to capture most of the benefit while preventing most of the repugnant results of equilibrium.

Comment author: [deleted] 04 February 2015 12:59:29AM *  3 points [-]

Did not interpret it as such, but perhaps because offered interpretation makes little sense.

Market approaches equilibrium by progressively adding marginal suppliers (whether suppliers really enter in sequential fashion irrelevant; is point about opportunity cost). Marginal suppliers are suppliers least interested in providing service; means they have better alternatives. Basically, for a given price, who more likely to sell organ? Person with better opportunities or person with worse opportunities? Plainly latter. So logically, latter will be "snapped up" by buyers before former (where "before" means relative to equilibrium; is again not temporal point).

Therefore can not move at all toward equilibrium to capture most of benefit without also allowing most of repugnance. Most of producer surplus located where most of repugnance is. To get benefit without repugnance, would need price floor, i.e. would need to prevent movement to equilibrium. Goal would be to select portion of sellers closest to equilibrium point, not farthest from it.

Comment author: gjm 03 February 2015 08:41:09PM 3 points [-]

Let me, correspondingly, unpack the motivation behind my comment a little.

There is a continuum running all the way from "completely free unregulated markets" to "totalitarian central state determines what will be made and what it will cost". It looks to me as if Jiro was proposing some regulation and you responded by saying that totalitarian central planning has a bad track record. That doesn't seem altogether reasonable.

Further, when you say "central planning failed" you're working with a rather small sample and one with a bunch of confounding factors. Consider the USSR, for example. It had central planning, its people were rather poor, and in the end it collapsed. But, also: those people were always much poorer per capita than, say, those of the USA or Western Europe; the USSR spent decades locked in economic and (indirect) military conflict with a much better-resourced opponent; it had not only central planning but outright totalitarianism with some rather crazed leaders. Maybe the primary reason why the USSR wasn't a roaring economic success was that central planning is inferior to free markets, but I don't think we have enough evidence to make that claim with a lot of confidence.

Comment author: Lumifer 03 February 2015 08:46:30PM 4 points [-]

Jiro was proposing some regulation

To be precise, he was proposing price fixing.

and you responded by saying that totalitarian central planning has a bad track record

No, I did not -- the word "totalitarian" is a gratuitous addition by you.

I don't think we have enough evidence to make that claim with a lot of confidence.

Oh, but I do think we have more than enough evidence (have you looked at China, for example?). I don't think that claiming "we don't know yet" is a reasonable position -- this question has been settled.

Comment author: gjm 03 February 2015 09:19:36PM 1 point [-]

the word "totalitarian" is a gratuitous addition by you.

It doesn't seem that way to me. What has failed is a bunch of totalitarian communist countries with central planning. How do you know it is better to characterize that situation as "central planning has failed" than as "totalitarian central planning has failed"?

this question has been settled.

Point me to an explanation of how it has been settled and how rival explanations for the observations have been dealt with?

Comment author: Lumifer 03 February 2015 09:42:16PM 2 points [-]

This question has only been widely debated in the economics literature for the last, what, 70 years?

Comment author: gjm 03 February 2015 11:43:57PM 1 point [-]

I think this discussion would be both more pleasant and more productive (at least for people who are not you) with a higher engagement-to-sneering ratio.

Comment author: Lumifer 04 February 2015 01:20:37AM *  2 points [-]

I am not particularly interested in engagement with the equivalent of flat-earth theories. At least not until I see some empirical evidence in their favour.

Comment author: [deleted] 04 February 2015 01:03:31AM *  2 points [-]

See page 7 two paragraphs above part IV. Note that opportunities to improve market does not suggest any amount of central planning in any way desirable. Has been academic consensus since 70s that markets > central planning. And consensus also is that when market doesn't work well, figure out ways to make it work well. Central planning not good alternative.