有人知道股市什麼時候是隨機漫步狀態? - 股票
By Regina
at 2017-10-20T00:47
at 2017-10-20T00:47
Table of Contents
各位好 請教一個問題
按照有效市場理論
股價不管任何時候都應該是呈現一種隨機漫步狀態
可是目前有非常多事證證明股市可以不屬於隨機漫步的狀態的
比方說:
1. 很多人用技術分析理論來做套利
2. 股價的波動叢聚性
基於上述事證
股市應該是有時候處在隨機漫步狀態 有時候又處在非隨機漫步狀態
我猜可能會是在數個不同狀態間做切換
有人知道要怎麼區分在某個時間區段
它是屬於隨機漫步狀態或否?
甚至有辦法知道在那些時間區段會開始出現群聚效應?
如果這牽扯到一些商業機密 我能夠理解有些技術不能公開談論
但有任何相關比較非機密資訊可以分享的嗎??
感謝!!
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