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framework is if the usual assumptions hold for matching or IV estimators, the control function identifies the presence and … appropriate to use more efficient estimators of treatment effects, such as those based on least squares or matching. Another …
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Difference-in-differences analysis with staggered treatment timing is frequently used to assess the impact of policy changes on corporate outcomes in academic research. However, recent advances in econometric theory show that such designs are likely to be biased in the presence of treatment...
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Difference-in-Differences (DiD) is a popular method used to evaluate the effect of a treatment. In its most simple version a control group remains untreated at two periods, whereas the treatment group becomes fully treated at the second period. However, it is not uncommon in applications of the...
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