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| Title: | 報導習性與MD&A當期報導一致性之關聯研究
A Study of the Relationship between the Past Reporting Tendency and the Reporting Consistency of MD&A |
| Authors: | 莊南琦 |
| Contributors: | 周濟群
莊南琦 |
| Keywords: | 報導習性
報導一致性
文字探勘
MD&A
K-means
Reporting tendency
Reporting consistency
Text mining
MD&A
K-means |
| Date: | 2014 |
| Issue Date: | 2015-07-01 14:43:09 (UTC+8) |
| Abstract: | 本研究透過文字探勘法(Text Mining)對美國2004年至2014年之企業進行分析，擷取10-K年報中之MD&A段落及Compustat資料庫中企業之財務資料，利用正負向詞典、向量空間模型(VSM)、TFIDF技術、K-means演算法等技術，將企業之MD&A與財務績效進行分群，最終將MD&A與財務績效之報導語調分類為悲觀、保守、持平、樂觀、誇大，共5種企業報導情境。本研究探討過去企業管理階層之MD&A報導語調與當期MD&A報導語調與財務績效一致性之關聯，研究假說為企業當期MD&A之報導一致性，會與過去的報告習性呈現正相關，亦即若過去企業報導習性呈現樂觀之平均報導語調，企業在當期MD&A與財務績效一致性也會有偏向樂觀之報導語調。
研究結果顯示，企業過去3年之平均報導語調與當期企業MD&A與財務績效一致性之報導語調呈現顯著正相關，故可以合理推論，隨著時間經過，管理階層仍會維持相同的MD&A報告習性。
This study presented a way to analyze US’s enterprises from 2004 to 2014 via text mining method. I use computer programs to capture MD&A paragraphs in 10-K annual report and financial information in Compustat database. The methods used to measure the consistency of MD&A and financial performance include Dictionary approach, TFIDF, Vector space model (VSM) and K-means cluster analysis. The consistency can be presented five different reporting tones: pessimistic, conservative, fair, optimistic, exaggerate.
This study investigated the relationship between management’s past reported tendency of MD&A and current-year reporting consistency of MD&A and financial performance. Research hypotheses is current-year reporting consistency will present significantly positive relationship to the past reporting tendency. It’s present that if the average reported tendency in past three years showing the optimistic tone, current-year reporting consistency of MD&A and financial performance will also report optimistic tone.
The results show that companies’ average reported tendency in past three years presents significantly positive relationship to the current-year reporting consistency of MD&A and financial performance. The results can be reasonably inferred that enterprise’s management will maintain the same reporting tendency in disclosing MD&A from the past years to the current year. |
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| Description: | 碩士
國立政治大學
會計研究所
102353023
103 |
| Source URI: | http://thesis.lib.nccu.edu.tw/record/#G0102353023 |
| Data Type: | thesis |
| Appears in Collections: | [會計學系] 學位論文
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