The theory and method of modeling volatility persistence of time series is a powerful tool in analyzing the risk of economic and finance market.

时间序列的波动持续性建模理论和方法是经济金融领域风险分析的一种强有力的工具。

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So the problem of existence through time,or persistence through time, shouldn't be called the problem of personal identity,but just the problem of identity.

所以积年累月下来存在的问题，就不该叫做个人认同感的问题，而仅是认同感的问题。

耶鲁公开课 - 死亡课程节选

What's the nature of persistence of identity over time?

同一性的持存本质是什么

耶鲁公开课 - 死亡课程节选

They also find evidence that flexibility is associated with lower rates of unfilled vacancies and with lower persistence of unemployment over time.

ECONOMIST: Working man’s burden | The

And doing all of that took time and patience, and most of all, it took persistence.

WHITEHOUSE: Winning the Future with Renewable Energy

Yet the wonder of his achievement is that it's deeply serious and blissfully funny at the same time, because it's also about yearning and desire, fantastic flights of language, the persistence of hope and the possibility of healing love.

WSJ: Silver Linings Playbook | Anna Karenina | Silver Linings Is a Platinum Film | Film Reviews by Joe Morgenstern