Phân tích tư tưởng của nhân dân qua đoạn thơ: Những người vợ nhớ chồng… Những cuộc đời đã hóa sông núi ta trong Đất nước của Nguyễn Khoa Điềm
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In this paper, we
employ the bias-adjusted matching estimator developed by Abadie and Imbens (2006), which
overcomes this difficulty. The matching estimator analysis maps the multiple matching variables
into a single number that measures the distance to the observation to be matched and selects as
control observations those with the lowest value for this distance. Matching estimators,
therefore, make it possible to use several matching variables simultaneously.
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The bias-adjusted
matching estimator of Abadie and Imbens further corrects the potential bias arising from the
difference in the matching variables by explicitly taking into account how the variable of
interest...
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GULF COOPERATION COUNCIL MUTUAL FUND INDUSTRY SURVEY 2011
