[Kevmo]

That’s why it’s a good idea to come up to speed on futures markets in general.

http://en.wikipedia.org/wiki/Prediction_market

http://www.popsci.com/popsci/technology/ea97f2a9d5123110vgnvcm1000004eecbccdrcrd/3.html

[ellery]

Thanks for the info! It would be fun to compare some of the larger markets to see whether they tend to be in synch in terms of predictions.

I thought it was especially interesting that, according to the second link, the markets using play money tend to be as accurate as those using real money.