The direction is definatly predictable, not a random walk.

来源: 不开窍 于 2010-05-11 10:41:18 [] [旧帖] [给我悄悄话] 阅读数 : (29 bytes)

Only the deviation is random.

所有跟帖： 

• then why all traders, no matter based on FA, TA or Quantitative -asd_123- ♀ 给 asd_123 发送悄悄话 (163 bytes) () 05/11/2010 postreply 10:43:37

• traders are working for others, not for themselves. -不开窍- ♂ 给 不开窍 发送悄悄话 (147 bytes) () 05/11/2010 postreply 10:50:50

• But an individual's investment time span could be limited, -asd_123- ♀ 给 asd_123 发送悄悄话 (214 bytes) () 05/11/2010 postreply 10:53:21

• Yes, when we get older, we get out of stock hradually. -不开窍- ♂ 给 不开窍 发送悄悄话 (0 bytes) () 05/11/2010 postreply 11:57:55

• Get out from stock, then where would you put your money in? -asd_123- ♀ 给 asd_123 发送悄悄话 (81 bytes) () 05/11/2010 postreply 15:56:46

• Similar t o 2nd law of thermadynamic, one direction only. -不开窍- ♂ 给 不开窍 发送悄悄话 (0 bytes) () 05/11/2010 postreply 10:53:25

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