bgrah449 comments on Arbitrage of prediction markets - Less Wrong

6 Post author: taw 04 December 2009 10:29PM

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Comment author: bgrah449 06 December 2009 06:22:06AM 0 points [-]

The Wiktionary entry is clearly wrong in that it isn't a definition at all. The definition of "running" isn't "what you do at a marathon."

1,600 people a day doesn't change the meaning of a word.

Statistical arbitrage is named thus because over an infinite time period, it is arbitrage.

Comment author: wedrifid 06 December 2009 08:03:22AM *  3 points [-]

1,600 people a day doesn't change the meaning of a word.

Yes it does. Bgrah449, meet human language.

Comment author: [deleted] 07 December 2009 06:07:05PM 0 points [-]

Statistical arbitrage is named thus because over an infinite time period, it is arbitrage.

I don't think so. I think "Statistical arbitrage" is marketing. As long as there is risk of ruin statistical arbitrage is still risky, even over infinite time. LTCM isn't going to show a profit ever.