애널리스트 보고서 텍스트의 주가예측력에 대한 검증
Verification on stock return predictability of text in analyst reports
  • 이영선
  • 야마다 아키히코
  • 양철원
  • 노호석
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초록

As sharing of analyst reports became widely available, reports generated by analysts have become a useful tool to reduce di fference in financial information between market participants. The quantitative information of analyst reports has been used in many ways to predict stock returns. However, there are relatively few domestic studies on the prediction power of text information in analyst reports to predict stock returns. We test stock return predictability of text in analyst reports by creating variables representing the TONE from the text. To overcome the limitation of the linear-model-assumption-based approach, we use the random-forest-based F-test.

키워드

stock return predictabilitynatural language processinganalyst reportsrandom forest F-test주식수익률 예측가능성자연어 처리애널리스트 보고서랜덤 포레스트 F-test
제목
애널리스트 보고서 텍스트의 주가예측력에 대한 검증
제목 (타언어)
Verification on stock return predictability of text in analyst reports
저자
이영선야마다 아키히코양철원노호석
DOI
10.5351/KJAS.2023.36.5.489
발행일
2023-10
유형
Article
저널명
응용통계연구
36
5
페이지
489 ~ 499