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博碩士論文 etd-0617119-000030 詳細資訊
Title page for etd-0617119-000030
論文名稱
Title
使用大數據分析進行基本面投資策略
Using Big Data for Fundamental Investing
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
92
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2019-07-09
繳交日期
Date of Submission
2019-07-17
關鍵字
Keywords
支援向量機、拔靴法、基本面、ESG投資、類別不平衡
SVM, Bootstrap, Fundamental, ESG investment, Class imbalance
統計
Statistics
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中文摘要
本研究以拔靴法評估資料挖掘於基本面分析下異常報酬現象之影響。研究發現基本面之異常報酬並非抽樣變異所造成,且眾多基本面因子確實存在橫斷面股價報酬之預測能力。另外,研究發現基本面分析影響力最高之變數大多數為融資現金流與盈餘相關之會計變數。本研究亦發現基本面變數可強化ESG (environmental, social and corporate governance)公司之投資組合報酬率。進一步,本文使用機器學習演算法中之支援向量機搭配基本面之變數以建立選股模型強化基本面變數所建構之投資組合。實證結果顯示使用基本面變數下之選股模型所建構之投資組合,其績效優於大盤報酬率。另一方面,本研究亦基於原始基本面投資組合搭配機器學習之選股模型所形成之新投資組合,其績效亦優於以原始基本面所建構之投資組合。
Abstract
In this paper, we use a bootstrap method to estimate the effect of data-mining on fundamental-based anomalies. We find that fundamental-based anomalies are not due to sampling variation and a lot of fundamental signals are actually powerful predictors of cross-sectional stock returns. Furthermore, most of these top fundamental signals are related to cash flow in finance and earning distribution. Our findings indicate that this predictive ability of fundamental signals also exists in the sample of ESG (environmental, social and corporate governance) companies. Then, we also use fundamental signals as predictors and popular classifier (e.g. SVM) to build a stock selection model. Therefore, the empirical results show that the portfolios of stock selection model using fundamental predictors can beat the benchmark. On the other hand, the new portfolios based on the original long-short portfolios and stock selection model can earn more excess returns than the original fundamental-based portfolios.
目次 Table of Contents
論文審定書 i
摘要 ii
ABSTRACT iii
CONTENT iv
LIST OF FIGURES v
LIST OF TABLES vii
1. INTRODUCTION 1
1.1 Background 1
1.2 Purpose 2
2. LITERATURE REVIEWS 4
2.1 Traditional asset pricing theory 4
2.2 Machine learning 5
3. DATA AND METHODOLOGY 9
3.1 Data and financial signals 9
3.2 Long-short fundamental-based portfolios 11
3.3 The bootstrap approach 12
3.4 The ESG sample 15
3.5 Stock selection using SVM 16
3.6 Class imbalance 20
3.7 Portfolio based on financial signals and selection model 24
4. EMPIRICAL RESULTS 26
4.1 Results for the bootstrap approach 26
4.2 Cross-sectional anomalies based on the top fundamental signals 30
4.3 Robust tests 33
4.4 Strengthening for ESG stocks 35
4.5 Stock selection model 38
5. CONCLUSION 42
REFERENCES 45
Appendix A: List of accounting variables 63
Appendix B: List of financial ratios and configurations 65
參考文獻 References
中文部分
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外文部分
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