期刊名称：CORE Discussion Papers / Center for Operations Research and Econometrics (UCL), Louvain
出版年度：2010
卷号：2010
期号：1
出版社：Center for Operations Research and Econometrics (UCL), Louvain
摘要：Value-added analysis is a common tool in analysing school performances. In this paper, we analyse
the SIMCE panel data which provides individual scores of about 200,000 students in Chile, and
whose aim is to rank schools according to their educational achievement. Based on the data collection
procedure and on empirical evidences, we argue that the exogeneity of some covariates is
questionable. This means that a nonvanishing correlation appears between the school-specific effect
and some covariates. We show the impact of this phenomenon on the calculation of the value-added
and on the ranking, and provide an estimation method that is based on instrumental variables in order
to correct the bias of endogeneity. Revisiting the definition of the value-added, we propose a new
calculation robust to endogeneity that we illustrate on the SIMCE data.
关键词：Keywords: value-added, school effectiveness, multilevel model, endogeneity, instrumental
variables.
