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Three Essays in Financial Economics
Three Essays in Financial Economics
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151031
- ISBN
- 9798383350072
- DDC
- 658
- 서명/저자
- Three Essays in Financial Economics
- 발행사항
- [Sl] : Yale University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 278 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-01, Section: A.
- 주기사항
- Advisor: Kelly, Bryan;Barberis, Nicholas.
- 학위논문주기
- Thesis (Ph.D.)--Yale University, 2024.
- 초록/해제
- 요약The first is titled "The Ghost in the Machine: Generating Beliefs with Large Language Models". I introduce a methodology to generate economic expectations by applying large language models to historical news. Leveraging this methodology, I make three key contributions. (1) I show generated expectations closely match existing survey measures and capture many of the same deviations from full-information rational expectations. (2) I use my method to generate 120 years of economic expectations from which I construct a measure of economic sentiment capturing systematic errors in generated expectations. (3) I then employ this measure to investigate behavioral theories of bubbles. Using a sample of industry-level run-ups over the past 100 years, I find that an industry's exposure to economic sentiment is associated with a higher probability of a crash and lower future returns. Additionally, I find a higher degree of feedback between returns and sentiment during run-ups that crash, consistent with return extrapolation as a key mechanism behind bubbles.The second is titled "Narrative Asset Pricing: Interpretable Systematic Risk Factors from News Text". We estimate a narrative factor pricing model from news text of The Wall Street Journal. Our empirical method integrates topic modeling (LDA), latent factor analysis (IPCA), and variable selection (group lasso). Narrative factors achieve higher out-of-sample Sharpe ratios and smaller pricing errors than standard characteristic-based factor models and predict future investment opportunities in a manner consistent with the ICAPM. We derive an interpretation of the estimated risk factors from narratives in the underlying article text. The third is titled "Business News and Business Cycles". We propose an approach to measuring the state of the economy via textual analysis of business news. From the full text of 800,000 Wall Street Journal articles for 1984-2017, we estimate a topic model that summarizes business news into interpretable topical themes and quantifies the proportion of news attention allocated to each theme over time. News attention closely tracks a wide range of economic activities and explains 25% of aggregate stock market returns. A text-augmented VAR demonstrates the large incremental role of news text in modeling macroeconomic dynamics. We use this model to retrieve the narratives that underlie business cycle fluctuations.
- 일반주제명
- Finance
- 기타저자
- Yale University Management
- 기본자료저록
- Dissertations Abstracts International. 86-01A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798383350072
■035 ▼a(MiAaPQ)AAI30997238
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a658
■1001 ▼aBybee, Joseph Leland.
■24510▼aThree Essays in Financial Economics
■260 ▼a[Sl]▼bYale University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a278 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-01, Section: A.
■500 ▼aAdvisor: Kelly, Bryan;Barberis, Nicholas.
■5021 ▼aThesis (Ph.D.)--Yale University, 2024.
■520 ▼aThe first is titled "The Ghost in the Machine: Generating Beliefs with Large Language Models". I introduce a methodology to generate economic expectations by applying large language models to historical news. Leveraging this methodology, I make three key contributions. (1) I show generated expectations closely match existing survey measures and capture many of the same deviations from full-information rational expectations. (2) I use my method to generate 120 years of economic expectations from which I construct a measure of economic sentiment capturing systematic errors in generated expectations. (3) I then employ this measure to investigate behavioral theories of bubbles. Using a sample of industry-level run-ups over the past 100 years, I find that an industry's exposure to economic sentiment is associated with a higher probability of a crash and lower future returns. Additionally, I find a higher degree of feedback between returns and sentiment during run-ups that crash, consistent with return extrapolation as a key mechanism behind bubbles.The second is titled "Narrative Asset Pricing: Interpretable Systematic Risk Factors from News Text". We estimate a narrative factor pricing model from news text of The Wall Street Journal. Our empirical method integrates topic modeling (LDA), latent factor analysis (IPCA), and variable selection (group lasso). Narrative factors achieve higher out-of-sample Sharpe ratios and smaller pricing errors than standard characteristic-based factor models and predict future investment opportunities in a manner consistent with the ICAPM. We derive an interpretation of the estimated risk factors from narratives in the underlying article text. The third is titled "Business News and Business Cycles". We propose an approach to measuring the state of the economy via textual analysis of business news. From the full text of 800,000 Wall Street Journal articles for 1984-2017, we estimate a topic model that summarizes business news into interpretable topical themes and quantifies the proportion of news attention allocated to each theme over time. News attention closely tracks a wide range of economic activities and explains 25% of aggregate stock market returns. A text-augmented VAR demonstrates the large incremental role of news text in modeling macroeconomic dynamics. We use this model to retrieve the narratives that underlie business cycle fluctuations.
■590 ▼aSchool code: 0265.
■650 4▼aFinance
■653 ▼aLatent factor analysis
■653 ▼aEconomic expectations
■653 ▼aLarge language models
■653 ▼aEconomic sentiment
■690 ▼a0508
■690 ▼a0511
■690 ▼a0501
■71020▼aYale University▼bManagement.
■7730 ▼tDissertations Abstracts International▼g86-01A.
■790 ▼a0265
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160504▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


