The aim of the Diploma thesis is to create a measure-made and complex marketing plan for a family bakery, with the application of chosen modern methods in marketing.

Submitted by Camila dos Anjos Ferraz (cacaferraz@gmail.com) on 2015-12-25T19:05:12Z No. of bitstreams: 1 Co-Creation in Hospitality Industry - a Case Study on the Drivers for Traveler-Generated Content.pdf: 2832811 bytes, checksum: de014292f47037eecdbc94c6ac2ec326 (MD5) / Rejected by Ana Luiza Holme (ana.holme@fgv.br), reason: Camila, O numero das paginas só pode aparecer a partir da introdução. Aguardo. Ana Luiza Holme 3799-3492 on 2016-01-04T11:14:13Z (GMT) / Submitted by Camila dos Anjos Ferraz (cacaferraz@gmail.com) on 2016-01-05T21:22:34Z No. of bitstreams: 1 Co-Creation in Hospitality Industry - a Case Study on the Drivers for Traveler-Generated Content.pdf: 2835215 bytes, checksum: 46c4a7a25788c28545d6f2e54f44fae6 (MD5) / Approved for entry into archive by Ana Luiza Holme (ana.holme@fgv.br) on 2016-01-06T11:12:17Z (GMT) No. of bitstreams: 1 Co-Creation in Hospitality Industry - a Case Study on the Drivers for Traveler-Generated Content.pdf: 2835215 bytes, checksum: 46c4a7a25788c28545d6f2e54f44fae6 (MD5) / Made available in DSpace on 2016-01-06T11:44:26Z (GMT). No. of bitstreams: 1 Co-Creation in Hospitality Industry - a Case Study on the Drivers for Traveler-Generated Content.pdf: 2835215 bytes, checksum: 46c4a7a25788c28545d6f2e54f44fae6 (MD5) Previous issue date: 2015-12-18 / User-generated content in travel industry is the phenomenon studied in this research, which aims to fill the literature gap on the drivers to write reviews on TripAdvisor. The object of study is relevant from a managerial standpoint since the motivators that drive users to co-create can shape strategies and be turned into external leverages that generate value for brands through content production. From an academic perspective, the goal is to enhance literature on the field, and fill a gap on adherence of local culture to UGC given industry structure specificities. The business’ impact of UGC is supported by the fact that it increases e-commerce conversion rates since research undertaken by Ye, Law, Gu and Chen (2009) states each 10% in traveler review ratings boosts online booking in more than 5%. The literature review builds a theoretical framework on required concepts to support the TripAdvisor case study methodology. Quantitative and qualitative data compound the methodological approach through literature review, desk research, executive interview, and user survey which are analyzed under factor and cluster analysis to group users with similar drivers towards UGC. Additionally, cultural and country-specific aspects impact user behavior. Since hospitality industry in Brazil is concentrated on long tail – 92% of hotels in Brazil are independent ones (Jones Lang LaSalle, 2015, p. 7) – and lesser known hotels take better advantage of reviews – according to Luca (2011) each one Yelp-star increase in rating, increases in 9% independent restaurant revenue whereas in chain restaurants the reviews have no effect – , this dissertation sought to understand UGC in the context of travelers from São Paulo (Brazil) and adopted the case of TripAdvisor to describe what are the incentives that drives user’s co-creation among targeted travelers. It has an outcome of 4 different clusters with different drivers for UGC that enables to design marketing strategies, and it also concludes there’s a big potential to convert current content consumers into producers, the remaining importance of friends and family referrals and the role played by incentives. Among the conclusions, this study lead us to an exploration of positive feedback and network effect concepts, a reinforcement of the UGC relevance for long tail hotels, the interdependence across content production, consumption and participation; and the role played by technology allied with behavioral analysis to take effective decisions. The adherence of UGC to hospitality industry, also outlines the formulation of the concept present in the dissertation title of 'Traveler-Generated Content'. / Esta pesquisa estuda o fenômeno de conteúdo gerado por usuários aplicado à indústria de turismo com o objetivo de preencher a lacuna literária nas motivações que levam usuários à escrever avaliações no TripAdvisor. O objeto do estudo tem sua relevância gerencial uma vez que, identificadas as motivações dos viajantes para co-criar, estas possam tornar-se alavancas para geração de valor para marcas através da geração de conteúdo. Do ponto de vista acadêmico, o objetivo é expandir a literatura neste campo e endereçar a aderência de cultura local de co-criação aplicada às especifidades da indústria selecionada. O impacto de conteúdo gerado pelo usuário é endossado pelo fato das avaliações influenciarem as taxas de conversão. De acordo com a pesquisa conduzida por Ye, Law, Gu e Chen (2009), para cada 10% incremental na avaliação de um hotel, as reservas online crescem em 5%. A revisão literária constrói o modelo teórico para embasar a metodologia de estudo de caso do TripAdvisor. Aspectos quantitativos e qualitativos compõem a abordagem metodológica por meio de revisão literária, pesquisa por dados secundários, entrevista com executivo e pesquisa com usuários processadas com análises fatoriais e de agrupamentos (clusters). Além disso, o comportamento do usuário é impactado por aspectos culturais, o que diferencia suas motivações. A indústria de hospitalidade no Brasil é predominantemente dispersa sendo 92% dos quartos de hotéis independentes (Jones Lang LaSalle, 2015, p. 7) e hotéis menos conhecidos tendem a ser mais beneficiados em consideração do consumidor depois de receber avaliações segundo Luca (2011), que observou que o aumento de uma estrela na avaliação do Yelp, aumenta em 9% o faturamento de restaurantes independentes, enquanto nos de rede não há nenhum impacto. Portanto, essa dissertação almeja entender a geração de conteúdo por usuários no contexto de viajantes de São Paulo, Brasil, adotando o caso do TripAdvisor para descrever os incentivos para co-criação de usuários entre o público selecionado. A análise entrega quatro diferentes grupos que permitem embasar o desenvolvimento de estratégias de marketing. O estudo também sugere a existência de potencial na conversão de atuais consumidores de conteúdo em produtores de conteúdo, a remanescente importância das recomendações de familiares e amigos e o papel exercido por incentivos. Dentre as conclusões, a pesquisa leva à exploração dos conceitos de feedback positivo e efeito de rede, o reforço da relevância de conteúdo gerado por usuários para hotéis independentes, a interdependência entre participação, produção e consumo de conteúdo e o papel exercido pela tecnologia, aliada à análises comportamentais, na tomada de decisões. A aderência do conceito de UGC à indústria de hospitalidade nos leva ao conceito presente no título da dissertação de 'Conteúdo Gerado por Viajantes'.

Made available in DSpace on 2010-04-20T20:48:42Z (GMT). No. of bitstreams: 3 166815.pdf.jpg: 22231 bytes, checksum: 05dc610aedf210f4be6b23efe4fbe2f1 (MD5) 166815.pdf: 1470969 bytes, checksum: bd39991c397493712240206a46d81b74 (MD5) 166815.pdf.txt: 498847 bytes, checksum: cc7765645aad075debcf0b507bfee522 (MD5) Previous issue date: 2007-02-02T00:00:00Z / Esta tese tem como tema central o valor para o cliente, e como finalidade principal explorar a relação entre valor e comportamentos de reclamação e de boca a boca. O trabalho justificou-se pela necessidade de uma análise conjunta dos três temas, como forma de viabilizar uma melhor compreensão destes temas como elementos relevantes do paradigma de marketing de relacionamento. Foi desenvolvida uma revisão da literatura sobre cada um dos temas, com maior extensão sobre o valor para o cliente. Em cada um destes foram apontados: uma visão geral dos temas; a discussão conceitual e a relevância teórica e prática de cada assunto; os principais desafios para pesquisa; aspectos relacionados à mensuração; e os desenvolvimentos dos temas no contexto brasileiro. Foi elaborado a partir desta revisão um total de cinco proposições, que geraram dois modelos estruturais aos quais foram agregadas as proposições conceituais associadas aos construtos de benefício e de sacrifício como dimensões de valor para o cliente. Para avaliar os dois modelos, decidiu-se proceder a um levantamento de dados, por meio de um questionário estruturado, junto a estudantes de cursos de pós-graduação lato sensu da área de gestão, na cidade de Fortaleza. Foram coletados 261 questionários, dos quais 248 foram utilizados nas análises. Os modelos foram avaliados a partir da técnica de Modelagem de Equações Estruturais, tendo-se destacado os seguintes resultados: com relação à reclamação, identificou-se que, quanto mais os clientes percebem valor nos serviços, mais se tornam predispostos a reclamar, e mais efetivamente reclamam; quanto ao comportamento de boca a boca, verificou-se que quanto mais valor os clientes percebem, mais são predispostos a tais comunicações, e efetivamente falam mais intensamente e mais favoravelmente. Adicionalmente, foram identificadas algumas dificuldades com as proposições conceituais, e com os antecedentes do valor. Com base nos resultados, são apontadas algumas recomendações para outras pesquisas envolvendo os temas em questão, como forma de superar as limitações identificadas, e de avaliar os problemas identificados em cada um dos temas. / This dissertation has the customer value as the main subject, and the main purpose was to analyze the relationship of value with complaining and word-of-mouth behaviors. The research is justified for the necessity of a scientific analysis putting the three subjects together, in order to make possible a better comprehension of them as elements of the marketing relationship paradigm. This way, it was done a research on the academic literature of each subject, more extensively on customer value. For each subject, it was appointed: an overall analysis; a discussion about the concepts and the theoretical and practical relevance; the main challenges for academic research; aspects of measurement; and the development of researches on the subject in the Brazilian context. From the literature evaluation, five propositions were developed, what generated two different structural models. Conceptual propositions related to the benefits and sacrifices dimensions related to customer value concept were also put in the models. In order to evaluate the two models, a questionnaire was prepared, and the data collected with students of management lato sensu post graduate courses from Fortaleza. A total of 261 questionnaires were collected, and 248 were used in the analysis. Structural Equation Modeling were used to evaluate the models, and the main results were: related to complaining behavior, it was identified that value perceived influences positively the complaining intention, and the action of complaining; related to word-of-mouth, it was identified that value perceived influences positively the word-of-mouth intention, and also the behavior intensity and favorability. In addition, some difficulties were found relating the value conceptual propositions, both with the benefits and the sacrifices dimensions. From the results, some research recommendations involving the subjects were suggested, as a way to solve the limitations of this research, and to evaluate the problems identified in each one of the subjects.

Submitted by Filippo Ricci (filoricci@hotmail.it) on 2013-12-04T18:18:20Z No. of bitstreams: 1 FilippoRicci-Tese FINAL.pdf: 3291691 bytes, checksum: fcbe485c408e56346c91db5e79abaf25 (MD5) / Rejected by Luana Rodrigues (luana.rodrigues@fgv.br), reason: Prezado Aluno, Por gentileza, substitua o arquivo da "ficha catalográfica" enviado pela Biblioteca Digital, na página 4. No arquivo anexo, este encontra-se na 1ª página. Atenciosamente, Luana on 2013-12-04T19:29:04Z (GMT) / Submitted by Filippo Ricci (filoricci@hotmail.it) on 2013-12-04T19:34:45Z No. of bitstreams: 1 FilippoRicci-Tese FINAL.pdf: 3289784 bytes, checksum: c68f65c049e57bd4fd27575350b0fec7 (MD5) / Approved for entry into archive by Luana Rodrigues (luana.rodrigues@fgv.br) on 2013-12-04T19:54:51Z (GMT) No. of bitstreams: 1 FilippoRicci-Tese FINAL.pdf: 3289784 bytes, checksum: c68f65c049e57bd4fd27575350b0fec7 (MD5) / Made available in DSpace on 2013-12-05T11:56:25Z (GMT). No. of bitstreams: 1 FilippoRicci-Tese FINAL.pdf: 3289784 bytes, checksum: c68f65c049e57bd4fd27575350b0fec7 (MD5) Previous issue date: 2013-11-04 / The digital age saw the rise of the consumer focused-enterprise. Every day brands and products are the subject of millions of conversations in which consumers exchange views, opinions and information before making the purchase decision. Marketers understood the importance of word of mouth as a new strategic communication channel and started to anchor word of mouth techniques to the overall marketing strategy. Advertising has become a conversation business: the new marketing challenge is to create an engaging and sharable content that could expand and resonate within consumers’ networks. The more people talk about your brand, the more the likelihood to win harsh competition and increase sales. But how word of mouth marketing works? What make a marketing campaign a viral success? This work aims to provide a comprehensive analysis of word of mouth marketing theory and further investigate the key variables of viral marketing. Following the research question 'how companies design efficient viral campaigns?' the underlying dissertation adopts a descriptive model and a multiple case study approach (Coca Cola Zero and Dove) in order to provide insights and suggestions for viral marketing practices. Considering the findings of the research, a new framework is presented in order to show the most important stages that affect the creation, development and outcome of viral campaigns. / A era digital viu a ascensão da empresa focada no consumidor. Todos os dias, marcas e produtos são objeto de milhões de conversas em que os consumidores trocam pontos de vista, opiniões e informações antes de tomar a decisão de compra. Os profissionais de marketing entenderam a importância do boca a boca como um novo canal de comunicação estratégica e começaram a ancorar técnicas de boca a boca à estratégia de marketing global. A propaganda tornou-se um negócio de conversa: o novo desafio do marketing é criar um conteúdo envolvente e compartilhável que possa expandir e ressoar dentro de redes de sociais de consumidores. Quanto mais as pessoas falam sobre a sua marca, mais a probabilidade de ganhar a competição dura e aumentar as vendas. Mas como o boca a boca funciona? O que faz uma campanha de marketing um sucesso viral? Este trabalho tem como objetivo fornecer uma análise abrangente da teoria de marketing de boca a boca e usa um modelo descritivo para investigar as variáveis-chave de campanhas bem-sucedidas de marketing viral, a fim de proporcionar insights e sugestões para as práticas de marketing viral.

The thesis Possible approaches to the viral marketing in new media and its use in Czech Republic is concerned with one of the marketing strategies from foreign authors point of view. On the basis of related theories it describes the importance of viral marketing in order to point out the strengths and weaknesses of this method of promotion. The first part deals with the introduction of new media and specific ways of promotion in cyberspace. The following parts describes the related fields, word of mouth, memetics and information cascades. The actual view of viral marketing is given on the basis of publications by Seth Godin Douglas Rushkoff and Henry Jenkins. Part of the work deals with the measurement and analysis of viral marketing, which outlines the possible mathematical formula describing viral spread. After a theoretical introduction describes possible methods of viral marketing, which is clearly shown on the example of several Czech campaigns. Powered by TCPDF (www.tcpdf.org)

Le produit sport est envisagé comme l'un des rares produits qui procurent de la passion et de l'enthousiasme chez les individus. Les amateurs d'une équipe sportive vivent des réactions émotionnelles pour leurs équipes favorites, plus fortes dans l'industrie du sport comparativement à d'autres industries. Cette étude s'intéresse particulièrement à l'attachement émotionnel d'un individu à une équipe sportive. Il s'agit d'examiner les antécédents et conséquences de l'attachement émotionnel qu'un individu éprouve pour une équipe sportive. Le modèle conceptuel développé a comme variable centrale l'attachement émotionnel à une équipe sportive, la personnalité de la marque et l'expérience vécue avec cette dernière comme antécédents, la fidélité et le bouche-à-oreille électronique comme conséquences. Pour tester ce cadre conceptuel, un sondage en ligne a été mené auprès de 472 amateurs d'équipes professionnelles de la Ligue nationale de hockey (LNH). Les résultats de l'analyse des données montrent que la personnalité de l'équipe sportive et l'expérience vécue avec cette dernière influencent positivement l'attachement émotionnel, qui à son tour a une forte influence sur la fidélité et la génération d'un bouche-à-oreille électronique. Ce travail vient confirmer les résultats des recherches précédentes sur l'attachement émotionnel à une équipe sportive et compléter ces dernières dans un contexte particulier ; celui du sport. De plus, par le biais de ce travail nous proposons aux managers et décideurs en marketing des équipes sportives des suggestions les aidant à prendre les bonnes décisions stratégiques. Mots clés : Attachement émotionnel, personnalité de l'équipe sportive, expérience vécue, fidélité, bouche-à-oreille électronique.

Made available in DSpace on 2010-04-20T20:14:43Z (GMT). No. of bitstreams: 1 61080100031.PDF: 7443816 bytes, checksum: a82ca7f98a374b3f75cdb221b7fb942b (MD5) Previous issue date: 2010-02-22T00:00:00Z / O impacto do boca a boca na Imagem da Marca e no julgamento de produtos (bens e serviços) tem sido estudado há tempos na disciplina de comportamento do consumidor. Com o crescimento da internet como mídia social e meio de comunicação entre consumidores e empresas, o boca a boca ganhou força junto a profissionais e pesquisadores de Marketing. Uma revisão da literatura permitiu traçar um paralelo entre o boca a boca tradicional e o eletrônico. É preciso compreender cientificamente a influência do boca a boca eletrônico no comportamento do consumidor. Para isto, foram realizados dois estudos nesta dissertação, sendo o primeiro um estudo exploratório a partir da realização de entrevistas e aplicação de questionários a consumidores, profissionais de Marketing e especialistas do assunto com o intuito de levantar percepções gerais sobre o tema. Para avaliar estatisticamente as hipóteses propostas nesta dissertação, o segundo estudo foi a realização de um experimento com 168 estudantes, contando com cinco cenários e três tipos de produtos (Vestuário, Cosméticos e Lojas Online). A variável independente foi o Comentário Postado pelo consumidor. Duas foram as variáveis dependentes: Imagem da Marca e Intenção de Compra dela. Para a mensuração da Imagem da Marca se utilizou a escala de Personalidade de Marca de Aaker (1997). No tocante à Intenção de Compra, um concurso foi elaborado para os sujeitos. No início e no final da coleta de dados, os participantes escolhiam as empresas das quais ganhariam um prêmio (vale compra), caso fossem os vencedores. Mediu-se a Intenção de Compra em função da escolha dos consumidores antes e depois do estímulo, sendo comparados, ainda, os resultados dos diferentes cenários. Constatou-se que os comentários negativos e positivos que os consumidores postam na internet têm um impacto significante na Imagem da Marca para outros consumidores nos produtos Vestuário e Loja Online. Mas não foram percebidos impactos destes comentários na Imagem da Marca no produto Cosmético e na Intenção de Compra dos outros consumidores nos três tipos de produtos testados. O Gerenciamento dos Comentários negativos (resposta da empresa a comentário postado pelo consumidor) apresentou uma redução no impacto do comentário na Imagem da Marca para os outros consumidores no produto Loja Online. Contudo, os tons alinhados com Foco Regulatório do consumidor nas respostas das empresas não provocaram diferenças significativas, contra indicando essa concepção teórica como meio de aprimorar os resultados do Gerenciamento dos Comentários. Várias implicações científicas e profissionais interessantes decorrem da pesquisa. Para o praticante, se viu que a internet 2.0 é uma mídia a ser considerada no esforço de comunicação da empresa e que ela deve ser considerada como um canal de comunicação bidirecional. / The impact of Word of Mouth Communication on Brand Image and the evaluation of products (goods and services) has been studied for some time in the discipline of consumer behavior. With the growth of the Internet as a social media and as a means of communication between consumers and enterprises, Word of Mouth has gained strength with Marketing professionals and researchers. A review of the literature draws a parallel between traditional Word of Mouth and its electronic version. It is essential to understand scientifically the influence of Electronic Word of Mouth on consumer behavior. In order to do this, two main studies were made: the first one was an exploratory stage conducted with interviews and questionnaires applied to consumers, marketers, and experts on the subject in order to raise general perceptions on the issue. The second study aims to evaluate statistically the hypotheses proposed in this work and involves an experiment applied to 168 students, considering five scenarios and three types of products (clothing, cosmetics and Online Stores). The independent variable was the Comment Posted by the consumer on the internet. Two were the dependent variables: Brand Image and Purchase Intention. To measure Brand Image, the scale "The Brand Personality" by Aaker (1997) was used. To measure Purchase Intention subjects participated in a contest where they chose, at the beginning and end of data collection, the companies from which they would gain a gift certificate, if they won the contest. Purchase Intention was measured depending on the choice of consumers before and after the stimulus, and compared also the results of different scenarios. It was found that the positive and negative comments that consumers posted on the internet have a significant impact on Brand Image for other consumers of products in Clothing and Online stores. However, there was no perceived impact based on these comments regarding Cosmetic products. No impact was found on other consumers' Purchase Intention. Management of Negative Comments (company's response to comments posted by the consumer on the internet) decreased the negative impact of comments on other consumer's Brand Image on product Online Store and the use of Regulatory Focus Theory on companies' responses did not cause significant differences, counter indicating this theoretical concept as a mean to improve the results of managing the comments posted by the consumer on the internet. Several implications of scientific and professional interest arise from this research. For a Marketing professional, it is evident that internet 2.0 should be considered in the media plan of a company and that it should be treated as a two-way communication channel with consumers.

Background: We currently live in a time when consumers trust more on social media and less on traditional advertising as a source of information for their purchasing decisions. Social media and traditional advertising must be integrated somehow so that marketers can communicate more effectively with their target market. In this investigation, the influence of music influencers on consumer behavior is analyzed, getting to the conclusion that the benefits of influencer and social media marketing increases customer experience and credibility, as it gives a brand the ability to communicate with its customers and develop a long-term relationship. The music resource is combined with the influence of the artist's personality to generate strategies that are effective but not totally rewarded by the consumers. Purpose: The purpose of this study is therefore to explore what influence Latin American artists have on the behaviour of Latin American consumers and how companies can use these motivations to structure their own marketing campaigns. Method: In order to carry out the following research work, the following stages are proposed: Firstly, a theoretical framework will be elaborated using the methodology of literature review, secondly a qualitative research which will consist of an empirical analysis the instrument chosen for this is an interview with a professional in the sector. And finally quantitative research The survey is the instrument chosen to collect the information that will drive the quantitative research proposed for this study. Conclusion: The results suggest that artists have an influence on the purchasing behaviour of Ibero-American consumers. By establishing connections between literature review, empirical data and surveys, a significant relationship was found that affirms the theory. The study reveals evidence that consumers in general can be influenced by music as a formative variable of the environment or atmosphere. The benefits of influencer and social media marketing increases customer experience and credibility, as it gives a brand the ability to communicate with its customers and develop a long-term relationship. The music resource is combined with the influence of the artist's personality to generate strategies that are effective but not totally rewarded by the consumers. From there, marketers should take this research into account when implementing artists in their campaigns in Latin America.

The aim of this master thesis is to consider appropriate solutions of entering the foreign market. After introducing of the company follow the external and internal analysis. The thesis proves a suitability of the target market, deals with a choice of the product portfolio. It also mentions and checks the expectations of new market’s behaviour. In the final part of the thesis we can find a proper suggestions for entering the target market, steps and measures, which the monitored company shouldn’t leave out.

Dans cette thèse, nous étudions deux applications des processus stochastiques au marketing internet. Le premier chapitre s’intéresse au scoring d’internautes pour les enchères en temps réel. Ce problème consiste à trouver la probabilité qu’un internaute donné réalise une action d’intérêt, appelée conversion, dans les quelques jours suivant l’affichage d’une bannière publicitaire. Nous montrons que les processus de Hawkes constituent une modélisation naturelle de ce phénomène mais que les algorithmes de l’état de l’art ne sont pas applicables à la taille des données typiquement à l’œuvre dans des applications industrielles. Nous développons donc deux nouveaux algorithmes d’inférence non-paramétrique qui sont plusieurs ordres de grandeurs plus rapides que les méthodes précédentes. Nous montrons empiriquement que le premier a de meilleures performances que les compétiteurs de l’état de l’art, et que le second permet une application à des jeux de données encore plus importants sans payer un prix trop important en terme de pouvoir de prédiction. Les algorithmes qui en découlent ont été implémentés avec de très bonnes performances depuis plusieurs années à 1000 mercis, l’agence marketing d’avant-garde étant le partenaire industriel de cette thèse CIFRE, où ils sont devenus un actif important pour la production. Le deuxième chapitre s’intéresse aux processus diffusifs sur les graphes qui constituent un outil important pour modéliser la propagation d’une opération de marketing viral sur les réseaux sociaux. Nous établissons les premières bornes théoriques sur le nombre total de nœuds atteint par une contagion dans le cadre de graphes et dynamiques de diffusion quelconques, et montrons l’existence de deux régimes bien distincts : le régime sous-critique où au maximum $O(sqrt{n})$ nœuds seront infectés, où $n$ est la taille du réseau, et le régime sur-critique ou $O(n)$ nœuds peuvent être infectés. Nous étudions également le comportement par rapport au temps d’observation $T$ et mettons en lumière l’existence de temps critiques en-dessous desquels une diffusion, même sur-critique sur le long terme, se comporte de manière sous-critique. Enfin, nous étendons nos travaux à la percolation et l’épidémiologie, où nous améliorons les résultats existants. / In this thesis, we study two applications of stochastic processes in internet marketing. The first chapter focuses on internet user scoring for real-time bidding. This problem consists in finding the probability for a given user to perform an action of interest, called conversion, in the next few days. We show that Hawkes processes are well suited for modelizing this phenomena but that state-of-the-art algorithms are not applicable to the size of datasets involved. We therefore develop two new algorithms able to perform nonparametric multivariate Hawkes process inference orders of magnitude faster than previous methods. We show empirically that the first one outperforms state-of-the-art competitors, and the second one scales to very large datasets while keeping very high prediction power. The resulting algorithms have been implemented with very good performances for several years in 1000mercis, a pioneering marketing agency being the industrial partner of this CIFRE PhD, where they became an important business asset. The second chapter focuses on diffusion processes graphs, an important tool for modelizing the spread of a viral marketing operation over social networks. We derive the first theoretical bounds for the total number of nodes reached by a contagion for general graphs and diffusion dynamics, and show the existence of two well distinct regimes: the sub-critical one where at most $O(sqrt{n})$ nodes are infected, where $n$ is the size of the network, and the super-critical one where $O(n)$ nodes can be infected. We also study the behavior wrt to the observation time $T$ and reveals the existence of critical times under which a long-term super-critical diffusion process behaves sub-critically. Finally, we extend our works to different application fields, and improve state-of-the-art results in percolation and epidemiology.