Technology has evolved the last 20 years, making both the stock market and media operate in real time. The advancement of technology has increased trading activity and the number of investors who enter the stock market. Alongside, media has expanded itself into the internet and can, due to the advancement, provide information faster and in higher volumes through their channels. Being that, a limited number of follow-ups have been made regarding the impact of media on stock price and no studies have been made to investigate how stock price correlates with negative media. This generated the aim of this study to investigate and analyze the impact of “Bad Media Attention” on stock price. The thesis was conducted as an exploratory research study that collected secondary data from Avanza. Furthermore, the methodology in this study was structured and performed to best answer the research question (RQ1): Does “Bad Media Attention” have an impact on stock price?” The results showed that the majority of news defined as ”Bad Media Attention” had no statistically significant impact on stock price. Also, the study found no consistent statistically significant correlation between “Bad Media Attention” and stock price. However, the small number of significant variables tends to have a negative correlation between “Bad Media Attention” and stock price. Therefore, this research contributed to the stock market field in a number of ways. First, by showing a majority of news events, defined as “Bad Media Attention”, had no statistically significant impact on stock price for large cap companies on the OMX Stockholm 30 Stock Exchange. Second, the results and analysis may help to better grasp the impact of “Bad Media Attention”. Third, this study provided more insight in the research area and raised awareness of this particular phenomenon, and will for this reason be a valuable discovery for future research.

Background: The number of IPOs has been numerous in recent years. Moreover, the returns of the IPOs managed to either be over and underpriced. IPO-firms are generally unknown before they get listed. Therefore, the media outlets play an essential role in the dissemination of information to new investors. Thus, it becomes noteworthy to investigate whether media attention could be an explanatory factor for the first-day returns and how it affects an IPO in the short-term perspective. Research Questions: i) If the amount of media coverage two months pre-IPO has any relation with the first trading day return and ii) If the amount of media coverage helps to predict the IPOs stock return volatility after a two-month period (44 trading days)? Purpose: This research will attempt to find evidence if the amount of media coverage pre- IPO may drive the demand for the IPO and the first-day return. For this purpose, it is also necessary to find the under and/or overpricing. Furthermore, a regression analysis will be applied during a two-month period after the first trading day to investigate if increasing volatility depends on the amount of media coverage. Delimitations: The sample consists of 165 IPOs in Sweden from Aktietorget and OMX Stockholm during the period 2005-2017. IPOs are initial introductions that are not unit IPOs, mergers & acquisitions, right issues, spin-offs or buy-out firms. Method: The first research question is explained by a Pearson correlation where X is the media variable and tested against the degree of under or overpricing. Furthermore, a multiple-linear regression is examined where variables market index, Retriever data and trading volume is tested against stock return. Conclusion: It has been identified that Aktietorget has been overpriced 2005-2017 by 2.9% while OMXS has been underpriced 6.8%. In summary, the study did not manage statistically to ensure that the amount of media coverage significantly influenced the stock return volatility.

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Presidents are said to exert their influence mainly through addressing the public and public speaking. Setting the media agenda is considered as one of the presidents' main strategic powers. Although the contemporary Czech president Václav Klaus enjoys substantial media attention, it is not granted that the media report on everything he says and emphasises. This research focuses on the interaction between presidential speeches at important occasions, represented by the 1 January, 28 October, and 17 November address, and the media represented by three nation-wide dailies Mladá fronta DNES, Právo and Blesk. The time span of the research is 2007 to 2011. The analysis seeks to examine how often were the presidential speeches reported by the media, and which particular topics from them generated press coverage. The results show that the media were mostly attracted by the 1 January address, while the 17 November speech received least attention. It has also emerged that the media reporters have been choosing selectively which topics from the speeches to cover. The scope of the space dedicated to each of the topics by the president in his speeches has not been reflected by the journalists. Therefore, significant differences in the topical priorities between the presidential and media agenda were...

Les médias et les réseaux sociaux constituent une source importante de diffusion et de communication des résultats de la recherche clinique. Le terme « spin » est utilisé lorsque la présentation et l’interprétation des résultats d’une étude sont déformées par les auteurs que ce soit intentionnellement ou involontairement. Les spins exagèrent les effets bénéfiques des interventions et sous-estiment les effets indésirables. Les principaux objectifs de ce travail étaient :1) d’évaluer la prévalence des « spins » dans les articles de presse, d’identifier les différentes stratégies de spin et de développer une classification de spin ; 2) d’identifier les facteurs associés à une diffusion des résultats via les réseaux sociaux et 3) d’étudier comment les articles scientifiques rapportés avec des spins diffusent via les réseaux sociaux, à partir de l’exemple de l’essai DAPT 2014. Dans un premier temps, nous avons réalisé une revue systématique des articles de presse décrivant les résultats d’études évaluant une intervention et indexés dans la rubrique santé de Google. Nous avons développé une classification des stratégies de spin pour les articles de presse et montré que la prévalence des spins est élevée. Dans un deuxième temps, nous avons réalisé une étude de cohorte d’articles évaluant les traitements contre le cancer pour identifier les facteurs associés à une attention médiatique élevée. Le critère de jugement principal était l’attention portée par les médias et les réseaux sociaux mesuré par le « score Altmetric ». Nos résultats ont montré l’importance de l’accès libre et des communiqués de presse. Enfin, nous avons effectué une analyse systématique de l’attention portée par les médias et les réseaux sociaux autour de l'étude DAPT qui était rapporté avec des spins sous estimant les effets indésirable de l’intervention. Nous avons montré que l’interprétation des résultats par les auteurs sont rarement contredits. Ces travaux ont permis de mettre en évidence l’importance des spins dans les médias et de développer des outils (classification de spin) pour améliorer la diffusion des résultats de la recherche. / Mass media and social networks are important sources of disseminating and communicating clinical research. The term “spin” is used when the presentation and interpretation of the results of a study is distorted by the authors intentionally or unintentionally. Spins exaggerate the beneficial effects of interventions and underestimate adverse effects. The main objectives of this PhD were (I) to assess the prevalence of spin in health news, as well as identify and classify different strategies of spin; (II) to identify factors associated with dissemination of research results through online media, and (III) to explore how results of a trial reported with spin were disseminated to the scientific community and online media, using the 2014 DAPT trial as a case study. For the first aim, we performed a cross-sectional study of health news and described the distortion of research results of studies evaluating an intervention in Google health news. We developed a classification of spin for health news and showed a high prevalence of spin. For the second aim, we performed a cohort study of articles evaluating cancer treatments and identify factors associated with high online media attention. The primary outcome was the attention received by media and social networks measured by Altmetric score. Our results highlighted the importance of open access and press releases. Finally, we performed a systematic review of attention received by media and social networks surrounding the DAPT study which were reported with spin and undermine the adverse effects of the treatment. We showed that the interpretation of results by authors was rarely criticized. These results highlighted the importance of spin in mass media and provided a tool (classification of spin) to improve the dissemination of research results.