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- W4310251944 abstract "Using a supervised machine learning framework on a large training set of questions and answers, we identify 1,364 trigrams that signal nonanswers in earnings call questions and answers (Q&A). We show that this glossary has economic relevance by applying it to contemporaneous stock market reactions after earnings calls. Our findings suggest that obstructing the flow of information leads to significantly lower cumulative abnormal stock returns and higher implied volatility. As both our method and glossary are free of financial context, we believe that the measure is applicable to other fields with a Q&A setup outside the contextual domain of financial earnings conference calls. This paper was accepted by Kay Giesecke, finance. Supplemental Material: The data files are available at https://doi.org/10.1287/mnsc.2022.4597 ." @default.
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- W4310251944 date "2022-11-16" @default.
- W4310251944 modified "2023-09-27" @default.
- W4310251944 title "“Let Me Get Back to You”—A Machine Learning Approach to Measuring NonAnswers" @default.
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- W4310251944 doi "https://doi.org/10.1287/mnsc.2022.4597" @default.
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