There is no evidence that indicate the funds have market-timing ability, but have certain security selection ability.

我国开放式基金没有表现出时机选择能力，但是表现出了显著的选股能力。

youdao

In addition, stock selection ability is markedly inversely related to market timing ability.

此外，选股能力和择时能力之间存在强烈的负相关性。

youdao

Profiting From Chaos: Using Chaos Theory For Market Timing, Stock Selection, And Option Valuation; Author:Tonis Vaga;

《混乱中赢利：运用混沌理论来计算股市机会，选择股票和》；

youdao

Those three tools are asset allocation, market timing, and security selection.

这些工具是,资产配置,市场时机选择和证券选择

耶鲁公开课 - 金融市场课程节选

So, it's not surprising that asset allocation explains more than 100% of returns and that, for the community as a whole, market timing and security selection are costly and lower the community's aggregate investment returns.

因此资产配置能解释100%以上的回报,也不足为奇了,对投资者整体来说,市场时机选择,和证券选择是有代价的,降低了总的投资回报

耶鲁公开课 - 金融市场课程节选

John now discusses them in his latest book, Mastering the Stock Market: High Probability Market Timing and Stock Selection Tools, published this month by Wiley.

FORBES: The Most Powerful Pivot Level

The active manager claims that through either market timing or individual security selection he can add value to your investment portfolio in excess of his costs.

FORBES: Playing With Active Money Managment Is A Losing Game

Active management claims to deliver additional benefits (the ever allusive alpha) through either individual security selection or market timing.

FORBES: The Rebirth Of The Snake Oil Salesman On Wall Street