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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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0초록
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 predictability; natural language processing; analyst reports; random forest F-test; 주식수익률 예측가능성; 자연어 처리; 애널리스트 보고서; 랜덤 포레스트 F-test
- 제목
- 애널리스트 보고서 텍스트의 주가예측력에 대한 검증
- 제목 (타언어)
- Verification on stock return predictability of text in analyst reports
- 저자
- 이영선; 야마다 아키히코; 양철원; 노호석
- 발행일
- 2023-10
- 유형
- Article
- 저널명
- 응용통계연구
- 권
- 36
- 호
- 5
- 페이지
- 489 ~ 499