Rational Ignorance

July 31, 2009

One of the workhorse concepts in Richard McKenzie’s excellent book Why Popcorn Costs So Much at the Movies and Other Pricing Puzzles is the idea that consumers can be rationally ignorant. Consider an argument he puts forth in Chapter 9 (entitled Why So Many Prices End in ‘9′) — he contends that one reason for [...]

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Review of Why Popcorn Costs So Much at the Movies

July 29, 2009

Of all the good books I’ve read recently, the best so far is probably Why Popcorn Costs So Much at the Movies and Other Pricing Puzzles by Richard McKenzie. The EconTalk podcast on the subject is an enduring favorite, and I’ve probably listened to it 3 or 4 times since it originally aired last year.
The [...]

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When it could matter if people are irrational

July 27, 2009

Previously, I’ve made the case that for the purposes of modeling, it doesn’t matter if people are truly rational (where rational is defined as always making decisions in such a way to maximize their utility functions to the best of their ability). However, just because, for the purposes of modeling, the two things are equivalent [...]

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Markets as an evolutionary system

July 24, 2009

On Wednesday, I wrote about the role markets play in aggregating information. Today I thought I would go into some more detail about how I see the mechanistic properties of markets. Consider the example of the iterated betting market from my previous post – even throwing out any discussion of incentives, the effect still arises [...]

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Markets as information aggregators

July 22, 2009

Seeing as how I like to define logic and symmetry in the context of their relationships with information, it should come as no surprise that I’ve also been very interested in what Hayek had to say about the role of information in markets. The general contention of Hayek’s 1945 paper The Use of Knowledge In [...]

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Storytelling about rationality

July 20, 2009

On Friday, I explored the fact that predictable irrationality can be viewed as rationality, but the fact that these things are essentially isomorphic really leads to the disturbing implication that it might not be possible to resolve the question of whether or not we are rational actors. What I am seeing in the literature is [...]

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Modeling irrationality as rationality

July 17, 2009

In yesterday’s post, I talked about how people don’t actually need to be rational in order for rational choice theory to be a good way of describing and predicting their behavior. I would put forth that the reason for this is that although there is asymmetry in a superficial dimension (the actual reasons that people [...]

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Initial Thoughts on Rationality in Social Science

July 16, 2009

Much of what I’ve been reading I’ve been reading lately has dealt with the subject of rationality and rational choice theory. I’m still trying to get my head around the general arguments about the thing, but I have come up with a basic framework for what I think of the subject.
First off, the arguments that [...]

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Review of Predictably Irrational

July 13, 2009

A few weeks ago I read Predictably Irrational by Dan Ariely, or more precisely I listened to the audiobook version. I’ll have some follow-up posts dealing with the actual contents of the book, but I thought I’d start out with my general impressions.
To me, this book seems like a very good introduction to the important [...]

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Why references?

July 10, 2009

If you’ve ever looked at the transcripts of Brian Dunning’s Skeptoid podcasts, you may have noticed that he always includes a “References” link to this page, wherein he explains that there are no references to be found. I think it’s an interesting example that illustrates how Dunning (and presumably the people he is writing this [...]

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