In order to carry out this study, panel data approach will be used.

为了进行这项研究，面板数据的方法将被使用。

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She examined information from the United States Panel of Study of Income Dynamics.

VOA: special.2009.06.09

The president spoke at a meeting of a White House advisory panel set up to study the problems facing the middle class and propose solutions.

VOA: standard.2010.01.25

In conducting the study, panel members traveled to dozens of bases across the country and around the world.

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In 2008 another economist Anderson Stanciole analyzed longitudinal data from the U.S. Panel Study of Income Dynamics.

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Now, according to the latest wave of the British Election Panel study, less than one in ten take that view.

ECONOMIST: Labour feels confident, but the polls are not to be trusted