Denna eventstudie syftar till att undersöka hur ett byte av noteringslista påverkar kumulativ onormal avkastning (CAR) 1 till och med 12 månader efter genomfört byte. I studien undersöks därför utförda byten av noteringsplats på den svenska aktiemarknaden under tidsperioden 1995-2009. I studien beräknas onormal avkastning delvis med marknadsmodellen (MM) som grund, men också med Fama & French tre-faktormodell (FF) för att öka reliabiliteten. Vidare undersöks om skillnader i CAR föreligger under olika tidsintervall samt om olikheter förekommer efter att berörda företag delats in i undergrupper baserade på typ av byte, industri samt storlek. Slutligen testas utifall den eventuella kumulativa onormala avkastningen är signifikant skild från noll med student t-test samt om det föreligger skillnader i medelvärde i de olika undergrupperna. Resultatet visar att den genomsnittliga kumulativa onormala avkastningen (CAR) uppgår till – 4,57 % (MM), - 3,74 % (FF) en månad efter bytet, vilket är signifikant på 1 % - nivån. Denna negativa tendens håller i sig och efter 12 månader uppvisas CAR på – 20,20 % (MM), -16,99 % (FF) även dessa statistisk säkerställda på 1 % - nivån. Detta resultat är i linje med liknade studier på andra aktiemarknader. Vi kan alltså dra slutsatsen att detta fenomen även föreligger på den svenska aktiemarknaden samt konstatera att händelsen listbyte är något både företag och aktieägare bör beakta mer varsamt.

企業創造價值的來源由傳統的有形資產如土地、廠房和設備等，轉變為無形的智慧資本，然而一般公認會計原則將創造智慧資本的投入視為費用加以處理，使得企業之帳面價值與市場價值的差距日益增加，公司的管理當局及投資人在評價時面臨重大困難，因而有效的智慧資本評價方式變得十分重要。本研究目的即在探討，採用收益基礎的評價模式下，何種資金成本估計方式所估計之資金成本較能有效反應投資人在考慮企業智慧資本之特性和風險後，所要求的必要報酬率，而使得以該資金成本作為折現率，估計企業智慧資本價值，所估計之結果較能反映企業之市場價值。本研究以Fama and French之三因子模式、益本比法以及市場模式估計企業之資金成本，實證結果發現如下： （1）不同資金成本估計方式所估計之結果存有一定程度的差異，而以不同資金成本估計方式所估計之資金成本作為折現率所計算之企業智慧資本價值亦有一定程度的歧異。 （2）三種估計企業資金成本的方式中，僅有Fama and French之三因子模式企業之Beta值呈正相關，而與公司規模呈負相關，為有效的資金成本估計方式。 （3）複迴歸分析結果發現，以三種方式所估計之資金成本作為折現率計算之智慧資本價值均對企業價值具有價值攸關性，而以三因子模式所估計之資金成本作為折現率計算之結果價值攸關性較高。 （4）若將企業依研發支出密度加以區分，在低研發支出密度公司中，以益本比法所估計之折現率計算之智慧資本價值攸關性最高；而在高研發支出密度以及零研發支出密度公司中均以三因子模式所估計之折現率計算之結果價值攸關性較高。 / Intellectual capital has become the origin of value of a company. But traditional GAAP views investment that is helpful to the value of untellectual capital such as R&D and advertisement as expenses, the gap between the book value and the market value of a business has become larger. This study confer that if we value a business through income-based method, what kind of estimated method of cost of capital should we use to make the estimated value of intellectual capital reflect the value of a business more efficiently. In this study we estimated cost of capital using three estimated method: factor model of Fama and French, earning to price ratio(E/P ratio), and market model, and we find: 1.If we use different kind of estimated methods, the estimated cost of capital can be different from each other. And if we use different kinds of cost of capital as discount rate, the estimated value of intellectual capital can be different from each other too. 2.Only the cost of capital that estimated through three factor model can be a effective method to estimate cost of capital of a company. 3.The value of intellectual capital can reflect the market value of the company when we use the cost of capital estimated through factor model, E/P ratio, and marlet model as the discount rate, and the result of Wald test suggest that using the cost of capital estimated by factor model as the discount rate to calculate the value of intellectual capital can reflect the market value more effeciently than others. 4.If we divide our sample into three group using the density of their R&D expenditure, we find that the cost of capital estimated by factor model can be the most efficient if a company has a higher R&D orzero expenditure.

Os mecanismos de proteção aos acionistas e credores surgiram prometendo às empresas que realizam investimentos em governança corporativa obter valorização da organização. Isto se daria porque os financiadores estariam menos expostos à expropriação do seu capital por meio de mecanismos de governança corporativa que assegurassem os seus direitos, o que facilitaria a comercialização de suas ações e títulos, o acesso ao mercado de capitais e uma redução do custo de capital, levando, assim, à valorização da empresa. Dentro deste contexto, este trabalho busca analisar a relação entre governança corporativa e o custo de capital próprio em empresas brasileiras de capital aberto. O presente estudo investiga se as empresas que adotam práticas de governança corporativa, medida pelos níveis diferenciados de governança corporativa da Bovespa, possuem um menor custo de capital próprio associado quando comparadas às empresas que não adotam tais práticas. Para o cálculo do custo de capital próprio foram utilizados o CAPM e o Modelo de Três Fatores com o intuito de verificar se a relação com as práticas de governança independe do método adotado. Utilizou-se a regressão linear múltipla para as análises estatísticas tendo como variável dependente o custo de capital próprio e as variáveis independentes de governança corporativa, grau de alavancagem financeira, grau de alavancagem operacional, os setores, o grau de intangibilidade da empresa e o tempo que a empresa está presente na Bovespa. Foi encontrada uma relação positiva do custo de capital próprio, medido pelo CAPM, com as empresas que adotam qualquer um dos níveis diferenciados de governança corporativa, ou seja, o custo de capital próprio é maior para empresas que aderiram a tais práticas. Nas demais análises, a governança corporativa não foi significativa. Dentro deste contexto, não se confirma a hipótese apresentada de menor custo de capital próprio associado à governança corporativa. Assim sendo, a valorização das empresas poderia se dar pelo incremento do fluxo de caixa esperado e não pela diminuição do custo de capital próprio. Pode-se considerar também que a adoção das práticas de governança corporativa estaria relacionada às empresas que possuem um maior risco associado, e que pretendem reduzi-lo adotando medidas de proteção ao acionista minoritário, ou ainda que o beta da empresa que representa o CAPM estaria mostrando um desempenho superior da empresa com relação ao mercado e dentro deste contexto não estaria sinalizando o risco associado, mas sim um melhor comportamento da ação da empresa se comparada ao mercado. / Protection mechanisms to shareholders and creditors were created promising that companies that invest in corporate governance would be appreciated. This would be possible because investors would be less exposed to the expropriation of their own capital by means of corporate governance mechanisms that ensure their rights and, accordingly, this would facilitate the sale of their shares and securities, the access to the capital market and a decrease in the cost of capital, appreciating thus the company. In this context, this paper has the purpose of analyzing the relationship between corporate governance and the cost of capital in Brazilian publicly-traded companies. This study determines whether the companies that adopt corporate governance practices, measured by Bovespa\'s (São Paulo Stock Exchange) corporate governance different levels, have a lower cost of capital when compared to companies that do not adopt these practices. To calculate the cost of capital, the CAPM and the Three-factor model were used to verify whether the relationship with corporate governance practices depends or not on the method adopted. The multiple linear regression was used to analyze statistics and the dependent variable was the cost of capital and the independent variables were the degree of financial leverage, the degree of operating leverage, the industries, the company\'s degree of intangibility and the time the company is listed on Bovespa. A positive relationship between the cost of capital, measured by the CAPM, and companies that adopt any of the corporate governance different levels was found, namely, the cost of capital is higher for companies that adhered to these practices. In the other analyses, the corporate governance was not significant. In this context, the hypothesis determining that a lower cost of capital is related to corporate governance is not confirmed. Therefore, the companies could be appreciated by increasing the expected cash flow and not by decreasing the cost of capital. We may also consider that corporate governance practices would be adopted by companies subject to a higher risk and that intend to reduce it by adopting protection measures to the minority shareholder, or that the company\'s beta that represents the CAPM would show a higher performance in relation to the market and, in this case, this would not highlight the risk, but a better performance of the company\'s shares when compared to the market.

Value creation in any stock market is a highly discussed topic with an abundant amount of generalized models aiming to predict future returns. Although no such tool exists yet there are, however, acknowledged models from peer-reviewed journals that have received a lot of attention over the years in examining company performance. This thesis is therefore built on the well-known Fama-French three-factor model. The original Fama-French three-factor model is extended by adding a new size premium and a new value premium, both based upon the spread between the return on invested capital (ROIC) – the weighted average cost of capital (WACC). The purpose of this is to make the returns of a portfolio account for cash flow and debt on top of risk, size, and value premium for a company. This thesis finds that the ROIC-WACC spread adds explanatory power to the existing Fama and French three-factor model on the Swedish stock market. The research method of this study is quantitative and deductive. The considered period is six years between the years 2014 and 2020.

The All-Electric Vehicle (AEV) industry development has intensified and is connected to governmentefforts to minimize greenhouse gas emissions and encourage people to buy electric vehicles. This hasled to all the lights turning on newly established all-electric vehicle makers and some older players. Thegrowth of these companies is depicted in their market capitalization, which has seen an unprecedentedrun. However, one can notice a knowledge gap in the analysis of factors affecting such companies'expected rate of return. This research focuses on analyzing the factors from three of the most knownasset pricing models - CAPM, Fama-French 3 Factor, and Fama-French 5 Factor models. It shows whichof these factors are significant in estimating the expected return rate for nine chosen companies and theimpact of each considerable factor on the return rate.Additionally, we calculate the expected return rate using the beforementioned models to verify whetherthere is an uptrend or not in the electric vehicle market. The current research is limited to companieslisted on the US stock market, with only all-electric vehicle production lines. We make an introductionto the AEV theoretical aspects and related market structure. We also present theoretical concepts behindthe expected rate of return perception.The analysis showed that the market risk premium impacts 100% of the companies. The SMB factorinfluences 55% of the companies while the HML factor only 11%. Finally, RMW affects 66% of thechosen dataset and CMA 77%. For all companies, there is a positive expected return rate. Looking atthe significant coefficients for each model, the results are the following: we can observe that for CAPMand all the companies, 100% of the coefficients are positive. For FF3FM, 93% of the significant factorsare positive, while only 7% are negative. Finally, for FF5FM, out of the 28 significant factors, 65% ofthe coefficients are positive, and 35% are negative.

Det finns ett ökat fokus på hållbarhet på grund av miljömässiga utmaningar vi som global gemenskap ställs inför, såsom klimatuppvärmning. Det har dock funnits en brist på ekonomiska incitament att åtgärda detta. Nu finns det studier som påvisar marknadsfördelar för företag som är mer miljömedvetna - och de som yrkar på motsatsen. Uppsatsen ämnar att kvantitativt studera om det finns en förändring i totala aktieavkastningen när företag i OMXS30 får högre hållbarhetsbetyg inriktade på miljö. Denna uppsats använder sig av Refinitivs Environmental Pillar (EP) betyg. Sambandet mellan avkastning och EP-betyg undersöks med hjälp av regressionsmodeller baserade på Fama-French trefaktormodell, där EP-betyg lagts till som ytterligare en faktor. Regressioner genomförs för OMXS30 företagen. Det sammanställda resultatet är ej statistiskt signifikant, men tyder på att det finns ett negativt samband mellan EP-betyg och aktieavkastning. / There is an increased focus on sustainability due to the environmental challenges that we as a global community are facing, such as global warming. There has however been a lack of economic incentive to do this. There are now studies that demonstrate market advantages for companies that are more environmentally conscious - and those that implore the opposite. This essay aims to quantitatively study if there is a change in total stock return when companies in the OMXS30 score higher in sustainability ratings focused on the environment. The essay uses Refinitiv’s Environmental Pillar (EP) scores. The relationship between return and EP-score is examined with the help of regression models based on the Fama-French three factor model, where EP scores are added as an additional factor. Regressions are performed for OMXS30 companies. The compiled results are not statistically significant; however, they suggest a negative relationship between EP scores and stock returns.

Previous scholars have viewed expenditures on ESG (environmental, social, governance) in two distinct ways. In one way, it has been viewed as wasteful if it does not directly contribute to the business. The other perspective being that by addressing ESG-issues, one can improve businesses by improving society. In recent times, ESG has become an increasingly common topic due to the increased awareness and debates regarding the environment and sustainability. The increased attention toward ESG issues has resulted in increased ESG reporting by firms. As a result, shareholders and stakeholders can address more of their concerns by knowing how ESG-friendly a firm is. With the increased attention given to ESG in recent years, its actual effects on a firm becomes increasingly interesting. The relationship between ESG and firm performance and the relationship between ESG and stock return has been studied by several researchers over the years. The different studies have come to different conclusions regarding these relationships and the relationships are still inconsistent. In this paper, the relationship between ESG-scores and firm performance, as well as ESG-scores and stock returns in Swedish large-cap firms is examined. This study aims to investigate the relationship between ESG-scores and firm performance and the relationship between ESG-scores and stock returns. Furthermore, the study measures firm performance by measuring total asset turnover, net profit margin, and operating profit margin. Stock returns are measured with the use of historical yearly stock returns. The relationships are investigated with regression analysis. This study has a quantitative approach, where secondary data between the years 2016-2020 has been extracted from the database Refinitiv Eikon. The study finds that the relationship between ESG-scores and total asset turnover is negative, meaning that increased ESG-scores result in less efficient use of assets. The relationship between ESG-score and net profit margin is insignificant, and no conclusion can be drawn from that relationship. The relationship between ESG-scores and operating profit margin is positive, meaning that customers are willing to pay more for a firm's sustainable practices. The relationship between ESG-scores and stock returns is insignificantly negative; thus, we cannot draw any conclusions regarding the relationship, but it could indicate that ESG-scores are accounted for in the stock price.

yes / An increase in obesity is usually accompanied by an increase in eating disturbances. Susceptibility to these states may arise from different combinations of underlying traits: Three Factor Eating Questionnaire (TFEQ) Restraint and Disinhibition. Two studies were conducted to examine the interaction between these traits; one on-line study (n=351) and one laboratory-based study (n=120). Participants completed a battery of questionnaires and provided self-report measures of body weight and physical activity. A combination of high Disinhibition and high Restraint was associated with a problematic eating behaviour profile (EAT-26), and a higher rate of smoking and alcohol consumption. A combination of high Disinhibition and low Restraint was associated with a higher susceptibility to weight gain and a higher sedentary behaviour. These data show that different combinations of Disinhibition and Restraint are associated with distinct weight and behaviour outcomes.

The primary objective of this dissertation is to revisit the CAPM and the Fama-French multi-factor models with a view to evaluate the validity of the probabilistic assumptions imposed (directly or indirectly) on the particular data used. By thoroughly testing the assumptions underlying these models, several departures are found and the original linear regression models are respecified. The respecification results in a family of heterogeneous Student's t models which are shown to account for all the statistical regularities in the data. This family of models provides an appropriate basis for revisiting the empirical adequacy of the CAPM and the Fama-French multi-factor models, as well as other models, such as alternative asset pricing models and risk evaluation models. Along the lines of providing a sound basis for reliable inference, the respecified models can serve as a coherent basis for selecting the relevant factors from the set of possible ones. The latter contributes to the enhancement of the substantive adequacy of the CAPM and the multi-factor models. / Ph. D.

Computer security is a growing field in the IT industry. One of the important aspects of the computer security is authentication. Using passwords (something you know) is one of the most common ways of authentications. But passwords have proven to provide weak level of security as they can be easily compromised. Some other ways of authenticating a user are using physical tokens, (something you possess) and biometrics, (something you are). Using any one of these techniques to secure a system always has its own set of threats. One way to make sure a system is secure is to use multiple factors to authenticate. One of the ways to use multiple factors is to use all the three factors of authentication, something you possess, something you are and something you know. This thesis discusses about different ways of authentication and implements a system using three factor authentication. It takes many security aspects of the system into consideration while implementing it, to make it secure.