it depends - a counter-example

来源: njrookie 2014-05-16 11:39:24 [] [旧帖] [给我悄悄话] 本文已被阅读: 0 次 (199 bytes)
回答: should have decay, for example...pairs2014-05-16 09:16:44
1X

day1 100
day2 110
day3 120

2X

Day1 100
Day2 120
Day3 144

2X gained more than twice the 1X.

所有跟帖: 

the idea is underlying has expected return of 0. in my example -pairs- 给 pairs 发送悄悄话 (304 bytes) () 05/16/2014 postreply 12:12:37

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