Die vorliegende Arbeit besteht aus vier Aufsätzen, die sich mit der Modellierung von Markenwahlverhalten und Markentreue beschäftigen. Der erste Aufsatz gibt eine Einführung in das Nested Logit Modell und weist auf die Existenz von zwei unterschiedlichen Spezifikationen hin. Das utility maximization nested logit (UMNL) und das non-normalized nested logit (NNNL) Modell besitzen unterschiedliche Eigenschaften, die die Schätzergebnisse beeinflussen. Mit einer Simulationsstudie werden die Konsequenzen der Verwendung verschiedener Softwarepakete demonstriert. Außerdem wird gezeigt, dass nur die UMNL Spezifikation bei Auferlegung einer Parameterrestriktion mit der Zufallsnutzentheorie konform ist. Der zweite Aufsatz untersucht anhand von realen Haushaltspaneldaten den Erfolg einer Familienmarkenstrategie. Die Signaling Theorie liefert einen Rahmen für die dem Markenwahlverhalten zugrunde liegenden psychologischen Prozesse zur Entstehung und Erklärung von produktkategorieübergreifender Markentreue. In einer empirischen Studie wird untersucht, inwieweit in einer Kategorie markentreue Kunden dieser Marke auch in anderen Produktkategorien treu sind. Es wird ein Markentreue-Hebel-Index entwickelt. Im dritten Aufsatz stehen die psychologischen Determinanten von kategorieübergreifenden Zusammenhängen im Markenwahlverhalten im Mittelpunkt. In einer empirischen Studie wird die Risikoaversion als entscheidender Bestimmungsfaktor von kategorieübergreifender Markentreue untersucht. Die konsumentenspezifische Risikoaversion wird dabei über Innovativeness und Status Quo Bias erfasst. Im vierten Aufsatz wird das Hybride Wahlmodell einem breiten Marketingpublikum vorgestellt. Klassische Wahlmodelle gehen davon aus, dass das beobachtbare Verhalten das Resultat eines nicht spezifizierten Evaluationsprozesses des Individuums ist. Der kausalanalytische Ansatz hingegen erlaubt die Spezifikation nicht direkt messbarer Faktoren als latente Variablen und kann somit Wahlmodelle sinnvoll ergänzen. / This thesis is composed of four essays that pick up topics in brand choice and brand loyalty modeling. The first essay gives an introduction to the nested logit model and points attention to the existence of two different specifications. The utility maximization nested logit (UMNL) model and the non-normalized nested logit (NNNL) model have different properties which impact the estimation results. In a simulation study, the consequences of the usage of different software packages for model estimation on the estimation results is demonstrated. It is also shown that only the UMNL specification with an imposed parameter restriction is consistent with the underlying random utility theory. The second essay investigates the success of an umbrella branding strategy using household panel data. Signaling theory provides a framework for the underlying psychological processes in consumers'' brand choice behavior and can contribute in the formation and explanation of loyalty to the brand in multiple categories. An empirical study determines whether there is a tendency for loyal consumers from one product category to be loyal to the same brand in other product categories as well. Therefore, a cross-category brand loyalty leverage index is developed. In the third essay, consumer-specific psychological determinants of cross-category relations between brand loyal choice decisions are discussed. In an empirical study, the concept of risk aversion is considered as the key determinant of cross-category brand loyalty. Consumers'' risk aversion is derived from their innovativeness and status quo bias. In the fourth essay, the hybrid choice model is introduced to the broad marketing audience. Traditional choice models assume that observable behavior results from an unspecified evaluation process of the observed individual. The causal-analytic approach offers the possibility to specify not directly measurable factors as latent variables, and can thus reasonably supplement choice models.

<p>Den övergripande problematiken vi identifierat är relationen mellan starka varumärkenoch kundlojalitet i företag med flera olika produktvarumärken. Syftet med denna uppsats är att förstå om och hur företag med paraplyvarumärkesstrategier kan skapa och bibehålla lojala kunder. Vi vill överföra det övergripande teoretiska resonemanget inom varumärkesstrategi och inom lojalitetsstrategi på företag med paraplyvarumärkesstrategier. </p><p>Varumärket Axfood är ett exempel på ett företag som har flera olika produktvarumärken (Hemköp, Willy:s, Willy:s hemma med flera). Vi har vid genomförandet av studien valt att använda oss av Axfood som studieobjekt. Vi har intervjuat medarbetare och kunder till Axfood för att samla in relevant data. </p><p>Vi anser att det går att skapa lojala kunder för företag med paraplyvarumärkesstrategier. Det som avgör om det är möjligt är om de olika produktvarumärkena står för samma grundläggande kärnvärden. Produkterna kan skilja sig åt vad gäller typ av produkt eller karaktär, men vissa grundläggande variabler måste vara lika för att det ska vara möjligt att skapa lojalitet.</p> / <p>The comprehensive problems we acknowledged are the relationship between strong brands and customer loyalty in corporations with umbrella brand strategies. The purpose of this thesis is to understand if and how corporations with umbrella brand strategies can create and retain loyal customers. Our intention is to apply the theoretical framework of brand strategy and loyalty strategies on corporations with umbrella brand. </p><p>Axfood is one example of a corporation which hold a number of product brands (Hemköp, Willy:s, Willy:s hemma et cetera). In this study we have chosen to use Axfood as an object of study and we have interviewed employees and customers to collect relevant data. </p><p>Our conclusions are that it is possible to create loyal customers in corporations with umbrella brands. The crucial aspects are that the product brands support the same fundamental values. The products can differ considering type of product or characteristics but some fundamental values has to be equal to make it possible to create loyal customers.</p>

Den övergripande problematiken vi identifierat är relationen mellan starka varumärkenoch kundlojalitet i företag med flera olika produktvarumärken. Syftet med denna uppsats är att förstå om och hur företag med paraplyvarumärkesstrategier kan skapa och bibehålla lojala kunder. Vi vill överföra det övergripande teoretiska resonemanget inom varumärkesstrategi och inom lojalitetsstrategi på företag med paraplyvarumärkesstrategier. Varumärket Axfood är ett exempel på ett företag som har flera olika produktvarumärken (Hemköp, Willy:s, Willy:s hemma med flera). Vi har vid genomförandet av studien valt att använda oss av Axfood som studieobjekt. Vi har intervjuat medarbetare och kunder till Axfood för att samla in relevant data. Vi anser att det går att skapa lojala kunder för företag med paraplyvarumärkesstrategier. Det som avgör om det är möjligt är om de olika produktvarumärkena står för samma grundläggande kärnvärden. Produkterna kan skilja sig åt vad gäller typ av produkt eller karaktär, men vissa grundläggande variabler måste vara lika för att det ska vara möjligt att skapa lojalitet. / The comprehensive problems we acknowledged are the relationship between strong brands and customer loyalty in corporations with umbrella brand strategies. The purpose of this thesis is to understand if and how corporations with umbrella brand strategies can create and retain loyal customers. Our intention is to apply the theoretical framework of brand strategy and loyalty strategies on corporations with umbrella brand. Axfood is one example of a corporation which hold a number of product brands (Hemköp, Willy:s, Willy:s hemma et cetera). In this study we have chosen to use Axfood as an object of study and we have interviewed employees and customers to collect relevant data. Our conclusions are that it is possible to create loyal customers in corporations with umbrella brands. The crucial aspects are that the product brands support the same fundamental values. The products can differ considering type of product or characteristics but some fundamental values has to be equal to make it possible to create loyal customers.

The sand lizard (Lacerta agilis) reaches the northern periphery of its distribution in south-central Sweden, where small, isolated relict populations occur in pine heath forests on sandy sediments. Modern forestry and fire suppression have reduced the amount of suitable open habitat for the species in this area and seem to be important for its decline. Main objectives of this thesis were to evaluate the efficiency of different management strategies, and if the sand lizard can function as an umbrella species for biodiversity conservation. Over a 16-year period, the estimated annual numbers of adult females in each of two study populations fluctuated between 23 and 3. Simulations of stochastic future population growth showed that the risk of extinction was highly dependent on population growth rate, which in turn was strongly affected by juvenile survival as indicated by elasticity analysis. Simulations of population growth for 50 years showed that the quasi-extinction risk (threshold ≤ 10 females) was &gt; 56% for patches ≤ 1 ha; which is the observed average size of suitable habitat for inhabited patches during a 10-year period. In managed metapopulation networks with highly co-fluctuating local populations, among-population dispersal was not important to reduce extinction risks over a 50-year horizon. In the field the preferred microhabitat of sand lizards was successfully restored using tree felling and patch-soil scarification. The lizards gradually colonized the restored patches, and 16 years after restoration, sand lizards where mainly found there. Pine-heath area, and patch area within individual pine heaths, were of major importance for long-term population persistence at regional and landscape scales, respectively. Analyses of nested species subsets and an umbrella index suggest that the sand lizard can be a useful cross-taxonomic umbrella species on both scales for other red-listed species.

中國在香港的一國兩制以高度自治為治理基礎,香港在1997回歸中國後已過了18個年頭,中國政府當初在中英聯合聲明中所給予香港的承諾如：高度自治,資本主義,以及人權自由,然而,這些承諾在今日的香港發展的如何為此論文的研究目的。研究方法採取文獻分析法以及次級資料分析,並且運用官方文件和香港大學的民意調查來做為研究基礎。研究結果發現,香港的高度自治尤其是在民主發展的進程,中國政府依然扮演著重要的角色,另一方面,除了新聞自由在近年來備受波及外其他方面的人權自由皆沒有明顯受侵害的趨勢。香港繁榮在回歸之後雖然幾度陷入全球蕭條的影響但在和中國快速經濟整合的背景下,香港的經濟得以維持在一定水準,但貧富差距等問題造成香港政府及社會的隱憂。 / This research is an attempt to conduct a preliminary assessment of one-country two systems in Hong Kong since the handover of sovereignty from British government back to China in 1997, particularly on the aspects of high degree of autonomy and economic performance. As promised in Sino-British Joint Declaration in 1984 that China pledged to be committed to sustain high degree of autonomy and way of life, capitalism in Hong Kong and this policy would remain unchanged for 50 years. This research draws heavily on secondary data and documentary analysis to answer the research questions, and the research found out that high degree of autonomy, way of life, have in some parts been enchroahed upon. On the other hand, the prosperity of Hong Kong has been ensured.

La flexibilité est une caractéristique intrinsèque des protéines qui doivent, dès le mo- ment de leur synthèse, passer d’un état de chaîne linéaire à un état de structure tridimen- sionnelle repliée et enzymatiquement active. Certaines protéines restent flexibles une fois repliées et subissent des changements de conformation de grande amplitude lors de leur cycle enzymatique. D’autres contiennent des segments si flexibles que leur structure ne peut être résolue par des méthodes expérimentales. Dans cette thèse, nous présentons notre application de méthodes in silico d’analyse de la flexibilité des protéines : • À l’aide des méthodes de dynamique moléculaire dirigée et d’échantillonnage pa- rapluie, nous avons caractérisé les trajectoires de liaison de l’inhibiteur Z-pro- prolinal à la protéine Prolyl oligopeptidase et identifié la trajectoire la plus pro- bable. Nos simulations ont aussi identifié un mode probable de recrutement des ligands utilisant une boucle flexible de 19 acides aminés à l’interface des deux domaines de la protéine. • En utilisant les méthodes de dynamique moléculaire traditionnelle et dirigée, nous avons examiné la stabilité de la protéine SAV1866 dans sa forme fermée insérée dans une membrane lipidique et étudié un des modes d’ouverture possibles par la séparation de ses domaines liant le nucléotide. • Nous avons adapté auproblème de la prédiction de la structure des longues boucles flexibles la méthode d’activation et de relaxation ART-nouveau précédemment uti- lisée dans l’étude du repliement et de l’agrégation de protéines. Appliqué au replie- ment de boucles de 8 à 20 acides aminés, la méthode démontre une dépendance quadratique du temps d’exécution sur la longueur des boucles, rendant possible l’étude de boucles encore plus longues. / Flexibility is an intrinsic characteristic of proteins who from the moment of synthesis into a linear chain of amino acids, have to adopt an enzymatically active tridimensionnel structure. Some proteins stay flexible once folded and display large amplitude confor- mational changes during their enzymatic cycles. Others contain parts that are so flexible that their structure can’t be resolved using experimental methods. In this thesis, we present our application of in silico methods to the study of protein flexibility. • Using steered molecular dynamics and umbrella sampling, we characterized the binding trajectories of the Z-pro-prolinal inhibiter to the Prolyl oligopeptidase pro- tein and we identified the most probable trajectory. Our simulations also found a possible ligand recrutement mechanism that involves a 19 amino acids flexible loop at the interface of the two domains of the protein. • Using traditional and steered molecular dynamics, we examined the stability of the SAV1866 protein in its closed conformation in a lipid membrane and we studied one of its proposed opening modes by separating its nucleotide binding domains. • We also adapted the activation-relaxation technique ART-nouveau which was pre- viously used to study protein folding and aggregation to the problem of structure prediction of large flexible loops. When tested on loops of 8 to 20 amino acids, the method demonstrate a quadratic execution time dependance on the loop length, which makes it possible to use the method on even larger loops.

Background – The energy sector is experiencing instability and energy companies must embrace more flexible structures and strategic initiatives to remain relevant. Purpose – To gain understanding about the challenges with implementing strategic congruence and integrated control in umbrella organizations and how their interplay can contribute to achieving a common business logic. Methodology – In the scope of a single case study, we conducted 20 interviews on corporate, business and functional level at Tekniska verken in Linköping AB. The ‘tentative model’ of Nilsson and Rapp (2005) was re-assessed to examine a common business logic. Findings – Our empirical findings indicated that the businesses of umbrella organizations can be diverse while simultaneously being congruent. When addressing strategic congruence, it is challenging because transparent communication and collaboration between business areas as well as optimizing organizational structures and designing clear responsibility areas is difficult to achieve. Regarding integrated control, it is not easy to realize because the corporate plan needs wide acceptance and breaking down complex content to the business areas is challenging. Not to mention that a common frame of reference regarding terminology and alike control standards requires high commitment.

Interactions of Metal Cations in Bioorganic Environment Computational Study Using Quantum Mechanics and Molecular Mechanics Tools Zdeněk Futera Biologically relevant interactions of piano-stool ruthenium(II) complexes with ds-DNA are studied by QM/MM computational technique. The whole re- action mechanism is divided into three phases - hydration of [RuII (η6 - benzene)(en)Cl]+ , consequent binding DNA and final intra-strand cross-link formation between two adjacent guanines. Free energy profiles of all reactions are explored by QM/MM MD umbrella sampling approach where the Ru(II) complex is described by DFT. For that purpose, special QM/MM software was developed to couple Gaussian and Amber programs. Calculated free energy barriers of Ru(II) hydration as well as DNA binding process are in good agreement with experimentally determined rate constants. Reaction pathway for cross-link formation was predicted that is feasible from both thermodynamical and kinetical point of view.

Egenanställning är en anställningsform som växer mycket snabbt. Under senare år har det börjat komma rapporter och debattartiklar om nya former för att organisera arbetslivet och möjliga konsekvenser av egenanställning när det gäller regelverk och anställningstrygghet. Med egenanställda menas personer som utför arbete på uppdrag och inte själva har något företag. De är i stället anställda av ett egenanställningsföretag som ansvarar för fakturering mot kunden/ uppdragsgivaren. Utifrån dessa förändringar är det intressant att se vilka konsekvenser det får för individen och vilka färdigheter som krävs i rollen som arbetstagare för att kunna hantera nya förväntningar och krav. I förlängningen är det också intressant att se vilket stöd arbetssökande kan få i att utveckla nya färdigheter på en arbetsmarknad som innebär en förskjutning från anställningstrygghet till anställningsbarhet och om vägledare och rådgivare inom arbetsmarknadsområdet bör eller ens kan rekommendera egenanställning som ett alternativ oavsett den arbetssökandes färdigheter. Denna studie utgår från ett individperspektiv och vänder sig främst till vägledare inom arbetsförmedling och vuxenutbildning samt till rådgivare och karriärcoacher inom Trygghetsråden. Förhoppningen är att studien ska kunna hjälpa till i vägledningsarbetet och fungera som en pusselbit inför individers kommande karriärbeslut. Studien baseras på Planned Happenstance-teorin. Valet av teoretisk utgångspunkt har gjorts utifrån att teorin ligger väl i linje med förskjutningen på arbetsmarknaden och den nya gig-ekonomin, där individen förväntas ta ansvar fullt ut för den egna utvecklingen och ställer krav på initiativförmåga och att vara självgående. För studien har en kvalitativ metod tillämpats. Sju personer har valts ut, de representerar organisationer i olika branscher, olika typer av organisationer samt har olika roller. Gemensamt är att det är organisationer som på olika sätt uppmuntrar, stöttar eller vägleder individer i en karriärvägledningsprocess. De intervjuade personerna arbetar i egenanställningsföretaget Frilans Finans, Fackförbundet Unionen, Trygghetsråden TRR, TSN och TRS, Arbetsförmedlingen och Verto Konsult AB. Resultaten i studien visar att det är relativt ovanligt att arbetslösa använder egenanställning som en plattform för att komma in på arbetsmarknaden. De specifika kompetenser som krävs är främst att vara självständig, driven, gilla försäljning, vara flexibel, våga ta risker, relationskompetens och specialistkompetens. Flera av dessa färdigheter stämmer överens med de färdigheter som karriärteorin Planned Happenstance menar är viktiga. Studien visar vidare att karriärvägledare bör stämma av att personer som överväger egenanställning har en tydlig affärsidé och att de gjort en ordentlig marknadsundersökning av den tjänst eller produkt man ska sälja samt har koll på de ekonomiska förutsättningarna. Stöd genom utbildningsinsatser för att öka den digitala kompetensen och kurser i lagar och avtal är också något som respondenterna lyfter fram, samt rådgivning när man är igång, inte bara inför uppstarten. Tillgång till nätverk och att kunna bolla med andra är också förslag på stödinsatser. / Self-employment is an employment form that is growing rapidly. In recent years, reports and debate articles are coming up about new forms of organizing work-life and possible consequences of self- employment in terms of regulations and employment security. Self-employed means people who perform work on assignments and not have a company themselves. Instead, they are employed by a self-employment company which is responsible for billing against the customer / client. Based on these changes, it is interesting to see what consequences it has for the individual and which skills are required in the role of the employee in order to handle new expectations and demands. In the long run, it is also interesting to see which support jobseekers can get in developing new skills in a labor market, which involves shifting from job security to employability and if counsellors and advisors in the labor market sector should or even can recommend self-employment as an option regardless of the job applicant's skills. This study is based on an individual perspective and is primarily addressed to counsellors in employment service and adult education, as well as advisors and career coaches within the job security councils - Trygghetsråden. The hope is that the study should be able to assist in the work of guiding and as a piece of puzzle for individuals' future career decisions. The study link to the Planned Happenstance theory. The choice of theory has been based on the fact that the theory is well in line with the shift in the labour market and the new gig economy, where the individual is expected to take full responsibility for his / her own development, claiming initiative and being self-governing. For the study a qualitative method has been applied. Seven people have been selected, they represent organizations in different industries, different types of organizations and have different roles. Commonly, they are organizations that encourage, support or guide individuals in a career-counselling process. The interviewees work in the self-employment company Frilans Finans, The labour union Unionen, the job security councils TRR (outplacement and job security services for private companies and employees), TSN (The Job Security Foundation, job security services for government employees) and TRS, Arbetsförmedlingen (The Swedish Public Employment Service) and Verto Konsult AB. The results in the study show that it is relatively unusual for unemployed to use self-employment as a platform for entering the labour market. The specific skills required are primarily independent, driven, like sales, flexible, dare to take risks, relation competencies and specialist skills. Several of these skills are consistent with the skills that the career theory Planned Happenstance means are important. Further, the study shows that career counsellors should argue that people who consider self- employment have a clear business idea and that they have done a proper market research of the service or product to sell, as well as the financial conditions. Support through training efforts to increase digital skills and courses in laws and agreements is also something that respondents highlight, as well as counselling at the start, not just before the start-up. Access to networks and being able to chat with others are also suggestions for support efforts.

Contexte : Les espaces publics, tels que les parcs, les espaces verts et bleus, sont cités comme des infrastructures favorisant l'activité physique, la santé mentale et le bien-être. Cependant, les caractéristiques précises des espaces publics qui sont significativement associées à la santé ne sont pas clairement identifiées. Cette recherche vise à fournir une mise à jour rigoureuse des connaissances scientifiques sur les associations entre les caractéristiques des espaces publics et la santé physique et mentale. Méthode : Nous avons réalisé une méta-revue afin de synthétiser, comparer et contraster les données probantes issues de recensions systématiques, en tenant compte de la qualité méthodologique des recensions incluses à l'aide de l’outils AMSTAR. 2977 références ont été identifiées par la recherche bibliographique dans 6 bases de données. Deux examinatrices ont indépendamment effectué la sélection des études et un total de 15 recensions systématiques sont incluses dans la méta-revue (représentant 213 études primaires). Résultats : quand les espaces publics sont considérés de manière générale, sans spécifier leur type ou leurs caractéristiques, les données probantes sur leur relation avec la santé physique et mentale sont peu concluantes. Cependant, lorsque les caractéristiques des espaces sont spécifiées, les associations sont davantage significatives. Ces dernières soutiennent une relation favorable ou à tendance favorable entre : 1) La quantité d'espaces verts (présence dans le quartier de végétation, de biodiversité, d’espaces verts calmes, sereins et naturels) et la santé mentale / bien-être chez les adultes. 2) La proximité des parcs et la présence de certains équipements (ex. terrains de jeux, sentiers) et l'activité physique dans les parcs chez les enfants et les adolescents, mais pas avec l'activité physique mesurée globalement. 3) Les espaces bleus (comme les zones côtières) et l'activité physique, la santé mentale et le statut pondéral. Les données sont peu concluantes quant à la proximité des parcs, la densité et la qualité des espaces publics associés à la santé physique et mentale. Les résultats concernant l'activité physique semblent indiquer que les associations positives décrivent davantage un contexte pour l'activité physique qu'un impact possible de l'accès aux espaces publics sur la quantité d'activité physique globale. Les associations positives ont également tendance à être spécifiques aux groupes d’âge pour la plupart des indicateurs. Conclusion: il est prouvé que certaines caractéristiques spécifiques des espaces publics sont associées à une meilleure santé. Cette méta-revue fournit des outils aux professionnels de la planification et du design urbain sur la façon de concevoir les espaces publics pour promouvoir la santé physique et mentale. / Background: Public open spaces (POS), such as parks, green and blue spaces, are cited as infrastructures to promote physical activity, mental health and well-being. However, precise characteristics of POS significantly associated to health are not clearly identified. This research aims to provide a rigorous update of scientific knowledge on associations between characteristics of POS, and physical and mental health indicators. Method: We undertaken an umbrella review to synthetize, compare and contrast evidence from systematic reviews, taking into account the methodological quality of included reviews using an adapted AMSTAR scale. Research in 6 databases returned 2977 citations. Two reviewers independently completed study selection resulting in 15 included systematic reviews (representing 213 primary studies). Results: The evidence of a favorable relationship between broadly defined or unspecified POS and physical and mental health is inconclusive. However, when characteristics of POS are specified, evidence for relationships is clearer. There is a favorable trend or a consistent favorable relationship between: 1) quantity of greenspaces (spaces with vegetal elements and biodiversity in the neighborhood, calm, serein and natural greenspaces) and mental health/wellbeing in adults. 2) proximity to parks and the presence of certain amenities (e.g. adventurous playgrounds) and park-based physical activity in children and adolescent, but not with overall physical activity. 3) blue spaces (such as coastal areas) and physical activity, mental health and weight status. There are some inconsistencies for parks proximity, density and quality of POS association with physical and mental health indicators. Results regarding physical activity seem to mean that studies with positive associations mostly describe a context for physical activity more than a possible impact of POS access on overall physical activity. Positive associations also tend to be age specific for most of indicators. Conclusion: There is evidence that some specific characteristics of POS are associated with better health. This umbrella review provides useful tools to urban planning and design practitioners on how to design POS to promote physical and mental health.