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  • Why there is no AAR results in estudy 2021 manuscript?

    Hello. I'm using Stata 17 and currently adopting event study methodology for my paper. I refer here for the estudy 2021 Manuscript:

    https://journals.sagepub.com/doi/epub/10.1177/1536867X211000010



    However, looking at the results, there was only CAAR for the specific event windows but no AAR results showed.

    Can anyone assist on this?
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