英语翻译Within the unbalanced sample ,we fashion a balanced samp
英语翻译
Within the unbalanced sample ,we fashion a balanced sample consisting of 3874 enterprises accounting for 27055 observations that span all 7 years of the data set.Therefore,in our data set more than 80% of the observations represent firms that over the 7-year sample period exit or enter the data set one or more times.
Within the unbalanced sample ,we fashion a balanced sample consisting of 3874 enterprises accounting for 27055 observations that span all 7 years of the data set.Therefore,in our data set more than 80% of the observations represent firms that over the 7-year sample period exit or enter the data set one or more times.
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你能帮帮他们吗