京都大学 / 0048 / 新制・課程博士 / 博士(情報学) / 甲第21399号 / 情博第685号 / 新制||情||118(附属図書館) / 京都大学大学院情報学研究科システム科学専攻 / (主査)教授 大塚 敏之, 教授 杉江 俊治, 教授 太田 快人 / 学位規則第4条第1項該当 / Doctor of Informatics / Kyoto University / DFAM

本文的分析建立於理性預期理論的基本假設上： (1) 市場隨時處於清結狀態。 (2) 人們依其對經濟結構之瞭解以形成預期。 (3) 人們擁有之訊息不完整。 透過市場行為分析過程，以探討在此三假設下，未預期到的通貨膨脹率及貨幣成長對 相對價格離散之影響，並利用台灣資料，對此關係作一實證分析。 根據理性預期學派之見解，認為只有未察覺到的通貨膨脹及貨幣成長，才會影響相對 價格離散，而可預期到的部份則對價格變動具有中立性。但就台灣資料實證結果發現 ，可預期到的和不可預期到的通貨膨脹皆會影響相對價格離散，因此，新古典學派的 貨幣中立性假說乃值得再商榷。 最後，則針對台灣經濟存在管價商品之事實，分析未預期到的貨幣成長及管價部門非 中立性效果，對相對價格離散之影響。結果顯示台灣政策當局對於管價商品價格之調 整，頗能與其中立性水準相一致，致使其相對價格離散之影響力甚低。 全文共分四章，第一章為導論。第二章探討有關相對價格離散之理論，並選取Parks, Sellekaerts, Herowitz 和Cukierman & Lciderman 等四個模型，作為分析重點。第 三章則以台灣資料對上一章的四個模型方程式，作迴歸分析。第四章則做一總結。

本研究利用離散時間涉險模型，分析台灣上市公司之多角化程度、公司治理與財務危機之關係。本研究分為三階段逐步加入多角化程度變數、公司治理與多角化程度之交叉相乘項及控制變數。首先探討相關或非相關多角化程度是否與公司發生財務危機之可能性具有關聯性。接著納入公司治理之考量，探究公司治理、相關或非相關多角化程度與公司發生財務危機可能性間之關係。 實證結果顯示，無論是相關多角化或是非相關多角化均可顯著降低公司發生財務危機之可能性。當納入公司治理之考量後，實證結果顯示，當公司的董監質押比率、控制股東持股比率、關係人進貨比率、關係人融資比率、席次控制比率、董事席次等6項公司治理指標愈差時，公司的相關多角化程度愈高，發生財務危機的可能性也會提高；而當公司的控制股東持股比率、關係人進貨比率、關係人融資比率、席次控制比率、董事席次等5項公司治理指標愈差時，公司的非相關多角化程度愈高，發生財務危機的可能性也會愈高。 / This study employs discrete-time hazard model to investigate how the distress-diversification sensitivity is moderated depending on the level of corporate governance in nested models which sequentially incorporate diversification and then corporate governance as a moderator. The findings show that diversification reduces the possibility of financial distress while corporate governance moderates the diversification effect on financial distress.

本研究主要目的在探討價格離散對消費者價格知覺的影響。藉由心理物理理論—適應水準理論、範圍理論與範圍頻次理論，為理論基礎以預測價格刺激在價格離散市場對消費者價格知覺判斷的影響，且基於物理刺激與價格刺激的本質差異，針對價格刺激的價值特性，提出兩點作為價格離散效果的推論基礎。第一、消費者對金錢損失與利得的不對稱反應，使得消費者對低價刺激比高價刺激更敏感。第二、價格資訊複雜時，消費者傾向以價格帶的價格頻次作為處理價格資訊的捷思。本論文藉由三個系列研究，以實驗設計法，將價格離散的效果來源區分為平均價格、價格範圍、價格範圍端點與價格型態四方面探討。 研究一結果發現，價格範圍會降低消費者能接受的最低價格水準並影響消費者的預期最低價格。低平均價格則會降低消費者可接受的最高價格。因此，當市場價格離散程度提高，市場價格範圍變寬或平均價格降低時，會使得消費者的可接受價格帶價格水準降低。可接受價格帶降低會影響價格判斷結果。在消費者主觀知覺上，寬價格範圍使得消費者知覺價格離散程度提高，代表著知覺價格差異、知覺價格不一致與知覺價格混亂三方面的指標都提高。 研究二則進一步證實，市場低價端點與高價端點對消費者的影響權重並不對稱。結果顯示，低價端點的寬價格範圍組會拉低可接受價格帶，然而，高價端點的寬價格範圍組並不會提高可接受價格帶，這是由於消費者對低價與高價的不對稱反應，使得低價與高價對消費者的影響權重有別。同時，在少數低價端點的高價格離散市場，消費者會感受到較高的價格離散程度，主要反映在知覺價格差異與不一致程度；相對地，若是少數高價端點的高價格離散市場，知覺價格離散程度不會顯著提高。一般在運用心理物理理論時，並未提到低價端點與高價端點的相對影響上的不同，事實上則會降低理論預測消費者面對市場價格差異的真實反應。 研究三探討集中分佈與兩極分佈兩種價格型態的影響，結果顯示價格分佈對可接受價格並無顯著影響。然而，兩極價格呈現的是市場價格變異很大的高價格離散市場，確實消費者的知覺價格離散亦有大於集中價格的情況，主要反映在知覺價格混亂程度方面。因此，欲瞭解價格離散對消費者價格知覺的影響，則需從平均價格、價格範圍與價格範圍端點分析之。 / The main purpose of this dissertation is to explore the impact of price dispersion on consumers’ price perception. Borrowing from psychophysics theories, such as Adaptation-Level Theory, Range Theory and Range-Frequency Theory, this research predicts how price stimuli in a product market with high price dispersion have effects on consumers’ price perception and judgments. On top of the difference between physic stimuli and price stimuli which has monetary value attached in nature, two assumptions are proposed for hypothesis inferences. First, consumers have asymmetric responses towards monetary loss and monetary gain, which make them more sensitive to low prices than high prices. Second, consumers tend to use relative price frequency among different price zones as a heuristic to process complicated price information. Therefore, this dissertation conducted three studies, all with experimental designs, to explore the effects of price dispersion from four dimensions- price mean, price range (width), extremely high or low prices and price pattern. This dissertation includes three studies. Study one was designed to explore the effect of price mean and price range. The result indicated that wide price range lowered down the lower boundary of acceptable price. Meanwhile, price range has effect on consumers’ lower boundary of expected price. In contrast, lower mean marked down the upper boundary of acceptable price. Thus, in a market of high price dispersion, the wide price range or lower mean tends to lower down the level of acceptable price, which further influences consumers’ price judgment. In addition, wide price range raised a consumer’s perceived price dispersion, which could be measured from higher perceived price difference, higher perceived price inconsistency and higher perceived price chaos. Study two focused on the effect of extreme prices under high price dispersion. Wide price range with relatively fewer extremely low prices maked down the range of acceptable price. However, wide price range with relatively fewer extremely high prices had no impact at all. This is because of consumers’ asymmetric responses towards low prices and high prices, which make consumer more sensitive to lower prices than high prices. Consumers’ perceived high price dispersion aroused by fewer extremely low prices was mainly the perception of high price difference and price inconsistency. In contrast, fewer extremely high prices would not enhance perceived price dispersion. Past application of psychophysics theories to predict the effect of price stimuli did not emphasize the different weight of low and high prices on consumers’ perception. Then the theories could not fully predict consumers’ real perception of market price difference. Study three further explored the effect of price pattern by comparing two price patterns, normally-centered and bipolarly-separated. The result indicated no effect on the range of acceptable price, but two patterns differed in their perceived price dispersion. What the pattern of bipolarly-separated represented was a market with high price variances, which also led consumers to perceive higher price dispersion, especially higher price chaos. Accordingly, the overall effect of price dispersion should be analyzed through the effect of mean, price range and extreme prices.

本研究主要探討公司設置獨立董監事及其專業性，對於分析師進行公司盈餘預測時是否會產生影響。由於上市櫃審查準則的規範，本研究將樣本分為兩群，第一群樣本為受此準則規範，須強制設置獨立董監事之IPO公司，第二群樣本為不受此準則規範之上市櫃公司，以研究透過獨立董監的設置，是否會對分析師行為產生影響。 研究結果發現，獨立董事的設置有助於降低分析師預測離散度，尤其是具有專業背景之獨立董事，對於降低分析師的預測誤差及預測離散度有顯著影響；在獨立監察人方面，僅具專業背景之獨立監察人對於提升分析師跟隨人數有顯著影響。另外，亦發現受規範公司樣本對於分析師預測行為之影響力明顯大於不受規範公司樣本，本研究推論其原因為國內除了新上市櫃有因應法規之需求而設置獨立董監事外，一般上市櫃公司並無強大誘因促使其設立獨立董監事，造成自願設置之樣本數量過少，而導致其實證結果不顯著。 / This study investigates the effect on the forecasting behavior of analysts through employing independent directors or independent supervisors and their professional background. According to the listed examination criterion of TSEC and OTC, the samples are classified into two groups: companies regulated by the law and non-regulated companies. The empirical results suggest that independent directors contribute to reducing forecasting dispersion of analysts. Furthermore, independent directors who have professional background contribute to reducing forecasting dispersion and forecasting error of analysts. In terms of independent supervisors, only people who have professional background are positively related with analyst following. The results also show that regulated companies have more significant influence on analysts than non-regulated companies do, indicating that in response to the listed examination criterion of TSEC and OTC, regulated companies have to employ independent directors and independent supervisors. On the other hand, there is no motive for non-regulated companies to employ independent directors and independent supervisors, resulting in no significant impact on forecasting behavior of analysts.

台灣住宅市場中，單一個案中混合不同面積之產品是常見的現象，但過去研究對此種現象探討仍有不足。本文發展「面積離散度」作為住宅混合現象之量化指標，衡量住宅面積混合所形成之異質性，加以區隔建商「集中」及「分散」之產品策略，並將後者區分高、中、低三種不同離散程度的個案。為了解建商行為模式，研究使用二元及次序性羅吉特模型進行分析，探討不同情況下，建商可能採行的產品策略以及個案面積離散之程度。 研究結果發現區位可及性較高、推案時機為景氣收縮期、成本面積愈大、戶數愈多，則建商採行分散策略的可能性較高，面積離散度亦會較高；而當住宅類型屬於透天、主力坪數與主力總價愈高，則採行分散策略機率較低，面積離散度亦較低，另外，建商是否上市櫃對產品策略或面積離散度均無影響。 關鍵字：住宅面積、面積離散度、產品策略、建商行為

魯西迪的《魔鬼詩篇》深入探討後現代千變萬化的世界中，離散社群自我定位、痛苦折磨、適應及抗拒的生活經驗。不可思議的故事，訴說著蛻變、脫軌及位置錯亂。故事描述離散主體痛苦經歷的困境，包含惡劣的生活居住環境、對故國家園的懷舊、以及企圖歸化殖民母國的矛盾情結。除此之外，故事亦涉及離散主體如何挪用及顛覆帝國中心僵硬、死板、堅不可摧的傳統。以離散主體的身份認同作為論述的根本基石，本論文主要由三個方面探討《魔鬼詩篇》中的離散社群：〈一〉瞬息萬變、反覆無常的後現代世界中，離散主體的生活經驗。〈二〉不可避免的揉雜狀態。〈三〉離散社群挪用異質空間。 第二章分為兩個部份：後現代狀態及漂泊離散。此章旨在解釋後現代性宣示一無所適從、無所寄託的新時代來臨，其顯著特色為斷裂性、不穩定性、易變性。此外，此章亦探討離散主體的經驗以及其面臨的認同危機。第三章闡述揉雜狀態之不可避免以及其崩解西方權威的潛能。文化揉雜強調不同文化間存在著不可翻譯性，因此，文化揉雜超越僵硬、堅不可摧的二元性，突顯非此亦非彼的可能性。同樣地，跨界過程中產生的語言揉雜也是應強調的重點。第四章由兩個面向探討《魔鬼詩篇》中的空間概念：空間的異質性以及離散主體的空間挪用。空間的不確定及易變本質和離散主體的能動性相當有關，藉由祕密的計謀以及游擊戰式的攻擊，離散主體得以改變空間的形塑，找到自我的空間並創造獨特的空間故事。透過這三個面向，本論文揭櫫離散主體的能動性，其利用不穩定的狀態開創無盡的可能性。 / An astounding novel revolving around metamorphosis, aberration, and dislocation, The Satanic Verses goes deep into the diasporic experience of self-positioning, torment, adaptation, and resistance in a kaleidoscopic and contingent postmodern world. It sharply delineates the predicaments pungently experienced by diasporic subjects, including the adverse residential environment, diaspora’s nostalgic attempt to grasp the distant past of homeland, and the ambivalent yearning to transform themselves “from the sojourners to settlers” (Barker 204). Besides, the text deals with how diasporic subjects appropriate and subvert the established norms of the imperial center. In consequence, the complicated issue of the diasporic identity turns out to be the underlying cornerstone in this thesis. The major concern of this thesis is to explore the entire novel principally from three angles: the diasporic experience in a world of disintegration and mutability, hybridity as an inevitable phenomenon, and the diasporic appropriation of the heterogeneous space. Chapter II is divided into two parts: the postmodern and diaspora. This chapter aims not only to explain that transience and fragmentation—the salient features of postmodernity—usher in a new age without foundation but also to explore the diasporic experience and the identity crisis confronted by diasporic subjects in the postmodern era. In Chapter III, the ineluctable phenomenon of hybridity and its latent capability to dismantle the authority of the West are meticulously scrutinized. Underscoring the untranslatability among diverse cultures, cultural hybridity transcends the inflexibility, stubbornness, and impenetrability of an either-or situation and brings to light the possibilities of a neither-nor situation. By the same token, the power of linguistic hybridity—a phenomenon taking place in the process of trans-territorial crossing—is also highlighted in The Satanic Verses. In Chapter IV, the concept of space in The Satanic Verses is meticulously investigated from two aspects: the heterogeneous nature of space and spatial appropriation by diasporic subjects. The indeterminate, mutable, discontinuous, and heterogeneous nature of space is closely related to the agency of diasporic subjects. With underground tactics and guerilla attack, diasporic subjects are able to alter the configuration of space, to search out their own space, and to create their own spatial stories. By means of delving into these three aspects, this thesis explores the agency of diasporic subjects to take advantage of their unsteady position and to open up endless possibilities.

本研究探討分析師在進行盈餘預測時是否會考慮會計師的審計品質。不同於過去文獻，本研究除了測試「品牌層級」的審計品質（brand-name level audit quality）與「事務所層級」（firm level audit quality）的審計品質外，利用我國簽證制度進一步檢視分析師盈餘預測之品質是否因會計師個人層級之審計品質 (individual-level audit quality) 的差異而有所不同。本研究以Heckman (1979) 之兩階段模型來控制會計師選擇內生性的問題，進行實證分析。實證結果顯示：(1) 四大會計師事務所對於分析師預測準確度具有正面影響，但侷限於小規模公司，呈現顯著正相關。(2) 四大事務所彼此之審計品質對於分析師預測準確度與離散程度之影響，並無顯著之差異，但整體來說，資誠會計師事務所之表現最佳，而小規模公司中，安永之表現較差；大規模公司中，勤業眾信之表現較差，此與一般市場所認知者不同。(3) 當分析師盈餘預測之對象為小規模公司時，審計品質最差的個別會計師會降低（提高）分析師預測準確度（離散程度）。反之，測試對象為大規模公司時，審計品質最佳的個別會計師會降低分析師預測準確度但，審計品質最差者，與本研究預期不符。結果顯示我國之分析師在進行盈餘預測時，會考量個別會計師之審計品質。 / This paper investigates the association between audit quality and properties of analysts’ earnings forecasts. Three levels of audit quality are identified and examined: brand-name level (proxied by a dummy Big 4), firm level (proxied by four dummies DT, PWC, KPMG, and EY), and individual-level (proxied by the average of the absolute values of discretionary accruals for all companies audited by the same auditor, grouped by quartiles). After separating sample companies into big, medium, and small sizes, the empirical results document several important findings. When audit quality is measured at the brand-name level, Big 4 improve analysts’ forecast accuracy for small companies only. However, Big 4 do not decrease analysts’ forecast dispersion. When the audit quality is measured at the firm level, analysts seem to regard EY and DT as of relatively low audit quality when small and big companies are the forecast targets, respectively. When the audit quality is measured at the individual level, auditors who are deemed to have the lowest audit quality (i.e., in the fourth quartile) are associated with less forecast accuracy and greater forecast dispersion in small companies. In contrast, auditors who are deemed to have the highest audit quality (i.e., in the first quartile) are associated with lower forecast dispersion in big companies. Taken together, the empirical results indicate that audit quality affects analysts’ forecast properties. More importantly, analysts are able to identify individual auditor’s audit quality and react accordingly.

鍾芭‧拉希莉(Jhumpa Lahiri)的小說《同名之人》(The Namesake, 2003)被視為近年來探討移民問題深刻的作品之一，書中描述移民家庭的新舊拉扯與兩代之間的文化難題。在此跨世代與跨文化背景下，拉希莉以文化翻譯者的角度述說移民過程中的困境、糾葛。 本論文將透過對於當代翻譯理論的引用，探討拉希莉如何運用翻譯策略書寫《同名之人》並論述拉希莉如何以翻譯為主要概念開展書中角色的離散經驗與身份認同。 第一章略述《同名之人》的梗概、介紹其相關評論與說明本論文理論架構。第二章藉由對當代翻譯理論的發展回顧建立對翻譯的重新認知；同時，也將詳述拉希莉與其作品以及翻譯的密切性。第三章檢視離散理念，進而分析離散主體在居間性(in-betweenness)中的文化翻譯。第四章透過對身份認同的探究，釐清翻譯對於離散主體身份建構的不可或缺性。第五章重新討論翻譯與起源(the origin)的問題，並點出翻「異」的價值性所在。 / Jhumpa Lahiri’s The Namesake (2003) has been regarded as one of the most brilliant literary works that deals with immigration in recent years. In the novel, Lahiri takes the readers into a full picture of an immigration family, unfolding the hardships of preserving traditions in a new world and the conflicts of seeking roots between two generations. Writing against the background of cross-generations and that of cross-cultures, Lahiri plays the role of a cultural translator, who detailedly narrates the predicament in the process of migration. The present thesis would like to adopt translation theories to examine how Lahiri writes The Namesake through translation. In addition, the present thesis also aims to shed light on the concept of diaspora as well as the notion of identity by taking translation into consideration. Chapter One begins with the introduction of The Namesake and the methodology used in the present thesis. Chapter Two focuses on reviewing the development of translation theories and on building the interrelationship among Lahiri, Lahiri’s literary works and translation. Chapter Three concentrates on the study of diaspora and cultural translation practiced in in-betweenness. Chapter Four pays attention to the concept of identity and its association with translation. Chapter Five reconsiders the question of origin in translation and validates the value of “translating hybridity”.

隨著科技的進步，網際網路已充斥在我們的生活之中。音樂也不再以硬體儲存的方式流傳（例如ＣＤ、黑膠唱片），而是轉變為數位音樂的方式，透由網路平台散播。許多數位音樂串流服務平台網站也如雨後春筍般誕生，例如iTunes、Spotify、Musicovery。加上文化水平的提升，音樂已是現代人生活之中，不可或缺的一部分。世界上的音樂難以計數，如何將音樂分門別類做好管理乃為現代商業應用的一個重要課題。因此，音樂曲風自動化辨識的技術確實為一個實用且難以迴避的課題。 過去在曲風自動化辨識已有許多研究，但內容不外乎音訊處理、頻譜轉換、特徵擷取、特徵降維、監督式學習機。在相同的模式下提出各種改良，或是全新的特徵擷取…諸如此類，而辨識率也達到了七成以上。本篇論文採用不同於以往的做法，將訊號進行頻譜轉換後層層降維，所得之訊號搭配LDA與決策樹進行辨識，最後去比較與分析離散餘弦轉換與小波轉換在辨識率上的優劣。我們發現搭配小波轉換與混合LDA及決策樹的方法，可以將音樂曲風之分辨率達到八成五以上。