Wan Yanyan. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (leaves 53-56). / Abstracts in English and Chinese. / Chapter I. --- Introduction --- p.1 / Chapter II --- Disclosure of Interests (DI) Regimes in Hong Kong --- p.5 / Chapter II.1. --- Development of Disclosure of Interests (DI) Regulations --- p.5 / Chapter II.2. --- Differences in Two Disclosure of Interests (DI) Regimes --- p.8 / Chapter III. --- Literature Review and Hypotheses --- p.11 / Chapter IV. --- Data and Methodology --- p.15 / Chapter IV.1. --- Data --- p.15 / Chapter IV.2. --- Descriptive Statistics --- p.20 / Chapter IV.3. --- Methodology --- p.22 / Chapter V. --- Results --- p.24 / Chapter V.1. --- Market Reaction to Insiders，Transactions --- p.24 / Chapter V.2. --- Information Asymmetry Hypothesis --- p.28 / Chapter V.2.1. --- Company Size Effect --- p.28 / Chapter V.2.2. --- Index Membership Effect --- p.32 / Chapter V.2.3. --- Industry Effect --- p.34 / Chapter V.2.4. --- Tests of Information Asymmetry Hypothesis for Subsamples --- p.41 / Chapter V.3. --- The Effect of Different DI Regulations --- p.42 / Chapter V.3.1. --- Full Sample --- p.43 / Chapter V.3.2. --- Subsamples --- p.48 / Chapter VI. --- Conclusion --- p.49 / Reference --- p.53 / Appendices --- p.57 / Appendix 1 --- p.57 / Appendix 2 --- p.67 / Appendix 3 --- p.70

Tam,Tsz-Wa. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references (leaves 105-109). / Abstracts in English and Chinese. / Abstract --- p.i / Acknowledgement --- p.iv / Table of Contents --- p.v / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Insider Trading and Corporate Governance --- p.1 / Chapter 1.2 --- Insider Trading and Stock Volatility --- p.3 / Chapter 1.3 --- Objective of the Thesis Research --- p.4 / Chapter Chapter 2 --- Literature Review --- p.6 / Chapter 2.1 --- Review of Theoretical Literature --- p.6 / Chapter 2.2 --- Review of Empirical Literature --- p.18 / Chapter Chapter 3 --- Insider Dealing Regulations in Hong Kong --- p.24 / Chapter Chapter 4 --- Data --- p.27 / Chapter 4.1 --- Data Collection --- p.27 / Chapter 4.2 --- Summary Statistics of Insider Trading Data --- p.30 / Chapter Chapter 5 --- Methodology --- p.31 / Chapter 5.1 --- Hypothesis --- p.31 / Chapter 5.2 --- Event Study --- p.32 / Chapter 5.3 --- Vector Autoregression (VAR) Analysis --- p.41 / Chapter Chapter 6 --- Empirical Results: Event Study --- p.51 / Chapter 6.1 --- General Description of Results --- p.51 / Chapter 6.2 --- Volatility Change Immediately before Insider Trading --- p.53 / Chapter 6.3 --- Volatility Immediately before and after Insider Trading --- p.61 / Chapter 6.4 --- Volatility Change Immediately after Insider Trading --- p.67 / Chapter 6.5 --- Intermediate Term Volatility before and after Insider Trading --- p.72 / Chapter 6.6 --- Chapter Summary and Discussion --- p.79 / Chapter Chapter 7 --- Empirical Results: Vector Autoregression (VAR) Analysis --- p.83 / Chapter 7.1 --- Volatility of Hang Seng Index Return --- p.83 / Chapter 7.2 --- Volatility of Market Value Weighted Index Return --- p.85 / Chapter 7.3 --- Volatility of Equal Weighted Index Return --- p.87 / Chapter 7.4 --- Aggregate Total Volatility --- p.89 / Chapter 7.5 --- Aggregate Abnormal Return Volatility --- p.91 / Chapter 7.6 --- Aggregate Firm Specific Volatility --- p.93 / Chapter 7.7 --- Chapter Summary and Discussion --- p.95 / Chapter Chapter 8 --- Conclusion --- p.97 / Bibliography --- p.105

Syfte: CSR är idag ett väl använt och diskuterat begrepp. Även företagsskatt är ett omdiskuterat ämne där många av de metoder som företag använder sig av för att kraftigt minska skatten kan ifrågasättas. Då skatt kan ses som ett sätt att bidra till samhället i stort har studier av CSR, som är ett socialt ansvarstagande, blivit intressant att studera i förhållande till skatt. Motstridiga studier leder dock till att ett behov finns att undersöka faktorer som kan påverka förhållandet. Ägarstruktur kan ha en påverkan på hur arbetet med företags sociala ansvarstagande ser ut samt hur skatteaggressivt det är. Den föreliggande studien undersöker därför om insiderägande är en faktor som har en modererande effekt på förhållandet mellan CSR och skatteaggressivitet. Metod: Studien utgår från en positivistisk forskningsfilosofi med en hypotetisk-deduktiv ansats. Studien har en kvantitativ strategi och en longitudinell design som genomförts med data över tio år från 273 publika europeiska företag, för åren 2008–2017. I studien har sekundärdata använts inhämtad från databasen Thomson Reuters Eikon. Insamlat datamaterial har analyserats i statistikprogrammet SPSS. Resultat & slutsats: Resultaten visar att insiderägande har en modererande effekt på sambandet mellan CSR och skatt. Genom undersökningen framkommer det att det är nivån av insiderägande som bestämmer riktningen på förhållandet mellan CSR och skatteaggressivitet. Slutsatsen som kan nås är att ägarstruktur är en faktor som bör tas i beaktning vid studier av sambandet mellan skatt och CSR. Examensarbetets bidrag: Undersökningen lämnar ett unikt bidrag till redovisningsforskningen då den är den enda att studera ägarstrukturens påverkan på CSR och skatteaggressivitet genom att titta på insiderägande. Studien lämnar också ett praktiskt bidrag till myndigheter och organisationer om de ägarstrukturer som kan påverka företags inställning till hållbarhetsredovisning och skattebeteende. Utöver detta breddas den empiriska forskningen på europeiska bolag och sambandet mellan CSR och skatt. Förslag till fortsatt forskning: Förslag till vidare forskning ges i form av studier på vilken typ av aktier som innehas av insiders, det vill säga om innehavet innebär röststarka aktier eller inte. Förslag ges också till att studera olika grupper av insiders då det kan finnas skillnader inom en bred definition av insiders i huruvida personen i stor utsträckning associeras med företaget. Det ges även förslag på att inte mäta CSR som ett samlat begrepp utan istället studera dimensionerna som separata beroende variabler då det kan finnas skillnader som inte upptäcks då begreppet mäts som en helhet. / Aim: CSR is an often-used term and a well-discussed topic. Corporate tax is also an often debated subject where many of the methods used by companies to greatly reduce tax can be questioned. Since tax can be seen as a way to contribute to society at large, studies of CSR, which is a way for companies to take social responsibility, have become interesting to study in relation to tax. Contradicting studies, however, lead to the need to investigate factors that may affect the relationship. Ownership structure can have an impact on corporate social responsibility and how tax-aggressive a company is. This study therefore investigates whether insider ownership is a factor that has a moderating effect on the relationship between CSR and tax aggressiveness. Method: The study is based on a positivistic research philosophy with a hypothetical-deductive approach. The study has a quantitative strategy and a longitudinal design using ten-year data of 273 public European companies, for the years 2008-2017. In the study, secondary data has been used retrieved from the Thomson Reuters Eikon database. Collected data has been analyzed in the statistical program SPSS. Result & Conclusions: The results show that insider ownership has a moderating effect on the relationship between CSR and tax. This study shows that it is the level of insider ownership that determines the direction of the relationship between CSR and tax aggressiveness. The conclusion that can be reached is that ownership structure is a factor that should be taken into account in studies examining the relationship between tax and CSR. Contribution of the thesis: This study provides a unique contribution to the field of accounting research as it is the only one to study the impact of ownership structure on CSR and tax aggressiveness by examining insider ownership. The study also provides a practical contribution to government institutions and organizations about the ownership structures that can affect companies’ attitude towards sustainability reporting and tax behavior. In addition to this, empirical research on European companies and the relationship between CSR and tax are broadened. Suggestions for future research: Further research is needed in the form of studies on the type of shares held by insiders, i.e. if the holding contains voting shares or not. Further research is also needed to study different groups of insiders as there may be differences within a broad definition of insiders as to whether the person is largely associated with the company or not. In addition, there are also suggestions for more research that does not measure CSR as one variable. By studying the dimensions that make up CSR as separate variables there may be differences that are not detected when it is measured as one variable.

Currently governments and research communities are concentrating on insider threat matters more than ever, the main reason for this is that the effect of a malicious insider threat is greater than before. Moreover, leaks and the selling of the mass data have become easier, with the use of the dark web. Malicious insiders can leak confidential data while remaining anonymous. Our approach describes the information gained by looking into insider security threats from the multiple perspective concepts that is based on an integrated three-dimensional approach. The three dimensions are human issue, technology factor, and organisation aspect that forms one risk prediction solution. In the first part of this thesis, we give an overview of the various basic characteristics of insider cyber-security threats. We also consider current approaches and controls of mitigating the level of such threats by broadly classifying them in two categories: a) technical mitigation approaches, and b) non-technical mitigation approaches. We review case studies of insider crimes to understand how authorised users could harm their organisations by dividing these cases into seven groups based on insider threat categories as follows: a) insider IT sabotage, b) insider IT fraud, c) insider theft of intellectual property, d) insider social engineering, e) unintentional insider threat incident, f) insider in cloud computing, and g) insider national security. In the second part of this thesis, we present a novel approach to predict malicious insider threats before the breach takes place. A prediction model was first developed based on the outcomes of the research literature which highlighted main prediction factors with the insider indicator variables. Then Bayesian network statistical methods were used to implement and test the proposed model by using dummy data. A survey was conducted to collect real data from a single organisation. Then a risk level and prediction for each authorised user within the organisation were analysed and measured. Dynamic Bayesian network model was also proposed in this thesis to predict insider threats for a period of time, based on data collected and analysed on different time scales by adding time series factors to the previous model. Results of the verification test comparing the output of 61 cases from the education sector prediction model show a good consistence. The correlation was generally around R-squared =0.87 which indicates an acceptable fit in this area of research. From the result we expected that the approach will be a useful tool for security experts. It provides organisations with an insider threat risk assessment to each authorised user and also organisations can discover their weakness area that needs attention in dealing with insider threat. Moreover, we expect the model to be useful to the researcher's community as the basis for understanding and future research.

Zhang, Yujie. / "August 2011." / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (leaves 53-56). / Abstracts in English and Chinese. / Abstract --- p.ii / 摘要 --- p.iii / Acknowledgement --- p.iv / Chapter 1. --- Introduction --- p.1 / Chapter 2. --- Institutional background and research hypotheses --- p.8 / Chapter 2.1 --- Rules and regulations in China --- p.8 / Chapter 2.2 --- Ownership structure and corporate governance in China --- p.11 / Chapter 2.3 --- Research hypothesis --- p.13 / Chapter 3. --- Construction of variables and model specification --- p.17 / Chapter 3.1 --- Stock return synchronicity (SYNCH) --- p.17 / Chapter 3.2 --- Insider trading --- p.18 / Chapter 3.3 --- Control variables --- p.21 / Chapter 3.4 --- Ownership structure and corporate governance indicators --- p.23 / Chapter 4. --- Descriptive statistics --- p.30 / Chapter 4.1 --- Insider trading --- p.31 / Chapter 4.2 --- Synchronicity --- p.34 / Chapter 4.3 --- Summary of all variables --- p.35 / Chapter 5. --- Regression analysis --- p.37 / Chapter 5.1 --- Effect of insider trading on stock price synchronicity --- p.37 / Chapter 5.2 --- Effect of insider trading by different identities on stock price synchronicity --- p.39 / Chapter 5.3 --- Effect of insider trading on stock price synchronicity under various corporate governance --- p.42 / Chapter 6. --- Robustness checks --- p.46 / Chapter 6.1 --- insider trading and industry-level return --- p.46 / Chapter 6.2 --- The effect of insider trading on industry vs. firm-specific earnings information --- p.47 / Chapter 7. --- Conclusions --- p.51 / References: --- p.53 / Appendix: Variable definitions: --- p.80

<p>There are an increasing number of pupils leaving school with incomplete grades. Research indicates that the causes to this phenomenon may be individual- as well as school related and complicated to illuminate. The purpose of the study is to examine the processes of exclusion that have resulted in pupils´ incomplete degrees. Two research problems have been formulated. The first one is about the identification of exclusion and branding factors for pupils with incomplete degrees. The second one focuses on how the pupils processes of branding- and exclusion are shaped. Six in dept interviews with three pupils with incomplete degrees have been conducted from a life history perspective. Each pupil has been interviewed twice, at different occasions. Results show that the factors vary and are individual, and can be identified within the family as well as the school. In school, there may be a tendency to refer the problem to the pupil rather than to the entire context.</p><p>This brands pupils that already are in a difficult situation, but results also show that school can have including tendencies as well. The three pupils in the study have in common that they contribute to the branding- and exclusion process by excluding themselves. To conclude, there are several factors that are intertwined and that together contribute to the result of incomplete degrees. Two of the pupils´ stories were related to Goldman’s (1980) identified stages of branding, which resulted in an understanding of these pupils process of exclusion. The third pupils´ story however, differed from the other two, and as a consequence, differed from Goldman’s theory, which is discussed.</p> / <p>Allt fler svenska elever går ut grundskolan med ofullständiga betyg. Tidigare forskning indikerar att orsakerna till att så sker kan vara såväl individ- som skolrelaterade och komplicerade att utreda. Syftet med studien är att undersöka de exkluderingsprocesser som lett fram till att elever fått ofullständiga betyg i grundskolan. Två problem har formulerats. Det första problemet handlar om att identifiera exkluderings- och stämplingsfaktorerna i grundskolan för elever med ofullständiga grundskolebetyg. Det andra problemet fokuserar på hur elevernas stämplings- och exkluderingsprocesser ser ut. Sex djupintervjuer med tre elever med ofullständiga grundskolebetyg har genomförts utifrån ett livsberättelseperspektiv. Varje elev har intervjuats vid två olika tillfällen. Resultaten visar att stämplings- och exkluderingsfaktorerna varierar och är individuella, och kan återfinnas inom såväl den egna familjen som skolans värld.</p><p>En skolrelaterad faktor handlar om en tendens att problematisera eleverna snarare än kontexten, vilket ytterligare stämplar elever i en redan svår situation, men resultaten påvisar också exempel på hur skolan kan arbeta inkluderande. De tre eleverna har gemensamt att de alla bidrar till stämplings- och exkluderingsprocessen genom självexkludering. Resultaten visar att det är en rad faktorer som samverkar och flätas in i varandra under elevernas skolgång, och som tillsammans bidrar till elevernas ofullständiga grundskolebetyg. Två av eleverna följde Goldmans (1980) stämplingsstadier, vilket bidrog till förståelse av dessa elevers exkluderingsprocesser. Den tredje elevens stämplings- och exkluderingsprocess avvek från de övriga två, och därmed också från Goldmans teori, vilket utgjort underlag för diskussion.</p>

Föreliggande uppsats undersöker om det har funnits någon indikation av insiderhandel för tio utvalda företag på Stockholmsbörsen under andra halvan av 2004 när dessa företag presenterar vinstvarningar. Uppsatsen beskriver huvuddragen av den Svenska insider-lagstiftning, och framlägger argument för en effektiv lagstiftning både från ett ekonomiskt och också från ett juridiskt perspektiv. De tio företagen har analyserats under en trettio dagars period. Slutsatsen är att det har förekommit indikationer på insiderhandel i två företag under perioden fram till vinstvarningen. Denna uppsats presenterades och försvarades våren 2005 vid Internationella Handelshögskolan i Jönköping. / This thesis analyzes if there has been any indication of insider trading for ten selected-companies on the Stockholm Stock Exchange during the second half of 2004 when these companies have reported loss announcements. It outlines the Swedish insider leg-islation, and put forward arguments for an effective insider legislation from an eco-nomic and legal perspective. The ten companies have been analyzed during a thirty days period. The conclusion is that there is signs of insider trading in two companies during the period prior to the loss announcement date. This thesis was presented and defended in the spring of 2005 at Jönköping International Business School.

There are an increasing number of pupils leaving school with incomplete grades. Research indicates that the causes to this phenomenon may be individual- as well as school related and complicated to illuminate. The purpose of the study is to examine the processes of exclusion that have resulted in pupils´ incomplete degrees. Two research problems have been formulated. The first one is about the identification of exclusion and branding factors for pupils with incomplete degrees. The second one focuses on how the pupils processes of branding- and exclusion are shaped. Six in dept interviews with three pupils with incomplete degrees have been conducted from a life history perspective. Each pupil has been interviewed twice, at different occasions. Results show that the factors vary and are individual, and can be identified within the family as well as the school. In school, there may be a tendency to refer the problem to the pupil rather than to the entire context. This brands pupils that already are in a difficult situation, but results also show that school can have including tendencies as well. The three pupils in the study have in common that they contribute to the branding- and exclusion process by excluding themselves. To conclude, there are several factors that are intertwined and that together contribute to the result of incomplete degrees. Two of the pupils´ stories were related to Goldman’s (1980) identified stages of branding, which resulted in an understanding of these pupils process of exclusion. The third pupils´ story however, differed from the other two, and as a consequence, differed from Goldman’s theory, which is discussed. / Allt fler svenska elever går ut grundskolan med ofullständiga betyg. Tidigare forskning indikerar att orsakerna till att så sker kan vara såväl individ- som skolrelaterade och komplicerade att utreda. Syftet med studien är att undersöka de exkluderingsprocesser som lett fram till att elever fått ofullständiga betyg i grundskolan. Två problem har formulerats. Det första problemet handlar om att identifiera exkluderings- och stämplingsfaktorerna i grundskolan för elever med ofullständiga grundskolebetyg. Det andra problemet fokuserar på hur elevernas stämplings- och exkluderingsprocesser ser ut. Sex djupintervjuer med tre elever med ofullständiga grundskolebetyg har genomförts utifrån ett livsberättelseperspektiv. Varje elev har intervjuats vid två olika tillfällen. Resultaten visar att stämplings- och exkluderingsfaktorerna varierar och är individuella, och kan återfinnas inom såväl den egna familjen som skolans värld. En skolrelaterad faktor handlar om en tendens att problematisera eleverna snarare än kontexten, vilket ytterligare stämplar elever i en redan svår situation, men resultaten påvisar också exempel på hur skolan kan arbeta inkluderande. De tre eleverna har gemensamt att de alla bidrar till stämplings- och exkluderingsprocessen genom självexkludering. Resultaten visar att det är en rad faktorer som samverkar och flätas in i varandra under elevernas skolgång, och som tillsammans bidrar till elevernas ofullständiga grundskolebetyg. Två av eleverna följde Goldmans (1980) stämplingsstadier, vilket bidrog till förståelse av dessa elevers exkluderingsprocesser. Den tredje elevens stämplings- och exkluderingsprocess avvek från de övriga två, och därmed också från Goldmans teori, vilket utgjort underlag för diskussion.

<p>Föreliggande uppsats undersöker om det har funnits någon indikation av insiderhandel för tio utvalda företag på Stockholmsbörsen under andra halvan av 2004 när dessa företag presenterar vinstvarningar. Uppsatsen beskriver huvuddragen av den Svenska insider-lagstiftning, och framlägger argument för en effektiv lagstiftning både från ett ekonomiskt och också från ett juridiskt perspektiv.</p><p>De tio företagen har analyserats under en trettio dagars period. Slutsatsen är att det har förekommit indikationer på insiderhandel i två företag under perioden fram till vinstvarningen.</p><p>Denna uppsats presenterades och försvarades våren 2005 vid Internationella Handelshögskolan i Jönköping.</p> / <p>This thesis analyzes if there has been any indication of insider trading for ten selected-companies on the Stockholm Stock Exchange during the second half of 2004 when these companies have reported loss announcements. It outlines the Swedish insider leg-islation, and put forward arguments for an effective insider legislation from an eco-nomic and legal perspective.</p><p>The ten companies have been analyzed during a thirty days period. The conclusion is that there is signs of insider trading in two companies during the period prior to the loss announcement date.</p><p>This thesis was presented and defended in the spring of 2005 at Jönköping International Business School.</p>

People with insight are known as insiders and they often have access to information which have not yet been publiched. Previous research show that insiders can use their information leverage to assimilate abnormal returns. The purpose of this study is to examine whether insiders in a company can generate abnormal returns by trading shares in their own company. A quantitative methodology has ben practiced in order to achieve the desired result. Data has been collected through Finansinspektionen about the insider trades on the Swedish stock market. We have further used an event study to calculate both the expected and also the abnormal return in order to answer our research issue. The results given from this study show significant abnormal returns when insiders trade with shares in their own company. / Aktier medför ett placeringsalternativ med en viss risk och ger investerare möjligheten att generera en avkastning på sin portfölj. Personer som anses ha tillgång till förtrolig samt kurspåverkande information inom ett företag betecknas som insynspersoner. Tidigare forskning visar att insynspersoner kan utnyttja detta informationsövertag i sin egen vinning för att tillgodogöra sig överavkastning. Syftet med denna studie är att granska huruvida insynspersoner kan generera en viss överavkastning gentemot andra aktörer på marknaden. I denna forskning har en kvantitativ metod tillämpats med en deduktiv ansats. Via Finansinspektionens insynslista kan vi detektera transaktioner genomförda av insiders för att sedan, med användandet av en eventstudie, besvara forskningsfrågan, om insynspersoner kan generera en överavkastning. Hypotesprövningar ligger sedan till grund för att bedöma huruvida resultatet påvisar signifikans. Utifrån denna studie kan vi dra slutsatsen om att nollhypotesen bör förkastas, således menar vi att det förekommer en signifikant överavkastning i samband med att insynspersoner bedriver handel på värdepappersmarknaden.