Monday, October 20, 2008


Optical Illusions

U. of Washington has a good optical illusion-experiment site. It has the Muller-Lyon illusion below and lots more that['s harder to post in this blog.

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Blogger michael webster said...

Do you think that there is much to the idea that errors in decision making are the result of illusions?

I used to think highly of this metaphor, but I find it increasingly unhelpful.

October 21, 2008 9:55 AM  
Blogger Eric Rasmusen said...

Yes, I do think the analogy holds. We use rules of thumb that sometimes work badly and that can be improved by being warned and by careful consideration.

October 21, 2008 10:58 PM  

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