Il presente lavoro si è proposto di indagare il concetto di razionalità limitata nel contesto delle scelte mediche. Sono stati reclutati 80 adulti, senza una storia clinica particolare a cui è stato dapprima somministrato un test virtuale che richiedeva di prendere delle decisioni su alcuni trattamenti e, successivamente, è stata somministrata una intervista semi-strutturata per approfondire il tema della scelta. I principali risultati: in primis, le persone adottano l’uso di euristiche veloci e frugali. In particolare, le persone adottano l’euristica del “Prendi il meglio” considerando, per ogni scelta, un numero limitato di caratteristiche. In secondo luogo, l'uso di euristiche è legato a una razionalità ecologica che adatta le strategie decisionali alla struttura delle informazioni disponibili del contesto ambientale. In questo contesto, se il consiglio del o le informazioni rispetto ai rischi/effetti indesiderati sono disponibili allora essi saranno sempre valutati perché sono caratteristiche fondamentali del processo di scelta. Il consiglio del medico è espressione della fiducia tra medico e paziente. La fiducia è rappresentata da segnali semplici e onesti che il medico è capace di trasmettere e questi segnali formano un canale di comunicazione tra le persone. Infine un altro risultato riguarda la comprensione del rischio associato al consumo di un farmaco che è risultato di difficile comprensione e rappresentazione. / This research aimed at applying the concept of bounded rationality in common medical choices in order to analyse the process by which laypersons make decisions in the field of health. Eighty adults, without a particular disease history were recruited and they were asked to manage both some virtual situations of medical choices and to discuss face to face about their past experiences in medical choices.Three major findings emerged. Firstly, people often use fast and frugal heuristics. In particular, people adopt the rule of the ‘take the best” considering, for each choice, a very limited number of elements to make their decisions. Secondly, the use of heuristics is related with the principle of ecological rationality in which strategies are chosen in connection with the available information of the environmental context. In this context, if “doctor’s advice” as well as “side effects information” are available, they will be always considered because they represent fundamental features of the decision making process. Doctor’s advice is expression of the trust between patient-doctor relationship. Trust is represented by simple and honest signals that the doctor communicates and these signals form an unconscious channel of communication between people. Thirdly, we found that risks associated with treatments are not easy to be conceived by laypersons. It was that people have not in mind a clear definition of the risk implied by medicines and treatment and they show, in average, a scarce interest in risk comprehension.

With the rise of a global economy and the growing importance of emerging markets, socioeconomic and environmental issues are becoming the main driving forces for many innovation practitioners. As a result of the recognition that traditional ways of managing innovation are not sustainable and that more inclusive and accessible efforts are needed, the exploration of frugal approaches to innovation has emerged. Startups that apply frugal innovation have the potential to stimulate sustainable growth and reduce development gaps between less developed and developed countries. Yet, given their specific context, many startups face difficulties to commercialize technologies and scale to new markets. There is a need to understand how to support startups and entrepreneurs to scale up in their early stages as a means to drive sustainable growth in emergent economies. Thus, the purpose of this study is to investigate what factors influence frugal innovation-based startups’ potential to accelerate (economic, environmental, and social) sustainable development. To understand the influencing factors, an investigation of the barriers and enablers to scale up as well as the entrepreneurial behaviors in relation to their social settings, is necessary. Literature within frugal innovation was reviewed and a study was performed in Cape Town, South Africa. South Africa is a relevant research area for frugal innovation since startups have the potential to leverage resources of the high-income market to solve large problems in lowincome communities (i.e. informal settings or townships). In-depth interviews were conducted with startup representatives and stakeholders within the entrepreneurial ecosystem. The study revealed that due to the entrepreneurs’ background, they have the ability to understand customer needs and influence mindset change. Meanwhile, the entrepreneurs are dependent on social support, because they often lack self-advocacy, skills, and resources required to scale up. The importance of democratizing digital technologies as well as leverage entrepreneurial ecosystems was highlighted. The author also suggests further discussions on how sustainable impact is assessed as well as the role of power dynamics within entrepreneurial ecosystems. / I linje med utvecklingen av att den globala ekonomin och den ökade vikten av tillväxtmarknader har socioekonomiska och miljörelaterade faktorer blivit en central drivkraft för många innovationsutövare. Från vetskapen att de traditionella sätten att hantera innovation inte är hållbara och att mer inkluderande och tillgängliga processer krävs, har appliceringen av frugala tillvägagångssätt av innovation uppkommit. Startups som tillämpar frugal innovation har potential att stimulera hållbar tillväxt och minska utvecklingsgapen mellan mindre utvecklade och utvecklade länder. Dock, givet deras unika kontext, har många startups svårt att kommersialisera teknik och skala upp till nya marknader. Följaktligen, finns det behov att förstå hur man kan stödja entreprenörer och startups att skala upp i tidigt skede för att driva hållbar utveckling i tillväxtmarknader. Därför är syftet med denna studie att undersöka vilka faktorer som påverkar frugala innovationsbaserade startups möjligheter att accelerera (ekonomisk, ekologisk och social) hållbar utveckling. För att förstå de influerande faktorerna är det nödvändigt att undersöka hinder och möjliggörare till att skala upp samt entreprenörernas beteende i förhållande till deras sociala kontext. Litteratur inom Frugal innovation granskades och en fältstudie utfördes i Kapstaden, Sydafrika. Sydafrika är ett relevant forskningsområde för frugal innovation eftersom startups har möjlighet att utnyttja höginkomstmarknadens resurser för att lösa stora problem inom låginkomstmarknaden. Fördjupade intervjuer genomfördes med startups representanter och intressenter inom entreprenöriella ekosystem. Studien avslöjade att på grund av entreprenörernas bakgrund har de en unik förmåga att förstå den informella marknadens behov och möjlighet att influera nya tänkesätt. Samtidigt är entreprenörerna beroende av socialt stöd på grund av brist på kompetenser, kunskaper och resurser nödvändiga för att skala upp. Därav belystes vikten av att demokratisera digital teknik samt utnyttja entreprenöriella ekosystem. Författaren föreslår också ytterligare diskussioner om hur hållbarhetskrav mäts samt maktdynamikens roll inom entreprenöriella ekosystem.

Despite some understanding within the development literature about innovation in extreme contexts marked by challenges of institutional voids and resource scarcity, there exists little knowledge within organization theory and strategic management. To extend this understanding, I connect innovation in extreme contexts with research on social and purposeful innovation. But while the literature attributes social innovation to social entrepreneurs, we know little about how social entrepreneurs themselves view innovation. Questions that arise: How do social entrepreneurs conceptualize innovation broadly and specifically under extreme contexts marked by institutional voids and resource scarcity? I explore these questions using qualitative, descriptive and analytical methods by studying two communities of globally networked and formally recognized social entrepreneurs. Analysis is at meso level of innovation and value chains but observations are at micro level through document analysis, interviews, and observations. I reveal perceptions by social entrepreneurs on conceptual drivers, determinants and key features of innovation. The findings help organizational theorists to frame models of innovation to understand innovation among social entrepreneurs broadly and in extreme contexts. In contrast to social innovation presented in current literature, I find innovation among social entrepreneurs is viewed as a disparate range of understandings that stem from varied motivations, means and outcomes related to social concerns as well as user, efficiency, and challenge concerns. I further find that social entrepreneurs turn to a mix of technology, social, and institutional innovations to deal with, make use of, or overcome constraints. The varied concerns and approaches to innovation can be condensed using the construct of 'frugal innovation' which helps provide some cohesion to the seemingly disparate notions of innovation among social entrepreneurs. I build propositions from the findings and suggest models of innovation that help develop a theory of frugal innovation with implications and lessons relevant for theory, practice, policy and future research.

A closer look at innovation for and from emerging markets respectively developing economies reveals that a variety of different terms and concepts related to this type of innovation exist. The goal of my conceptual paper is to present a comprehensive overview of related terms and concepts and to suggest theoretical based classification criteria in order to differentiate them. After a first investigation in relation to innovation for and from emerging markets the keywords ‘reverse’, ‘frugal’, ‘jugaad’, and ‘bottom of the pyramid / bottom of pyramid / bop’ were identified and used for searching the database of Google Scholar. For further investigation only texts were considered with at least eight various terms. 19 different texts were identified which classified for a further analysis. As results 33 identified terms in relation to innovation for and from emerging markets, various spellings and synonyms and references with at least two mentions in the identified texts are presented. As theoretical based classification criteria ‘market orientation’, ‘determinants’ (of innovation for and from emerging market)’, ‘nature’ (of innovation for and from emerging markets), sophistication’, ‘sustainability’, ‘novelty’ and ‘innovator type’ were identified.

Kyoto University (京都大学) / 0048 / 新制・課程博士 / 博士(情報学) / 甲第19114号 / 情博第560号 / 新制||情||99 / 32065 / 京都大学大学院情報学研究科社会情報学専攻 / (主査)教授 林 春男, 教授 田中 克己, 教授 喜多 一 / 学位規則第4条第1項該当

We consider a generalisation of proper vertex colouring of graphs, referred to as improper colouring, in which each vertex can only be adjacent to a bounded number t of vertices with the same colour, and we study this type of graph colouring problem in several different settings. The thesis is divided into six chapters. In Chapter 1, we outline previous work in the area of improper colouring. In Chapters 2 and 3, we consider improper colouring of unit disk graphs -- a topic motivated by applications in telecommunications -- and take two approaches, first an algorithmic one and then an average-case analysis. In Chapter 4, we study the asymptotic behaviour of the improper chromatic number for the classical Erdos-Renyi model of random graphs. In Chapter 5, we discuss acyclic improper colourings, a specialisation of improper colouring, for graphs of bounded maximum degree. Finally, in Chapter 6, we consider another type of colouring, frugal colouring, in which no colour appears more than a bounded number of times in any neighbourhood. Throughout the thesis, we will observe a gradient of behaviours: for random unit disk graphs and "large" unit disk graphs, we can greatly reduce the required number of colours relative to proper colouring; in Erdos-Renyi random graphs, we do gain some improvement but only when t is relatively large; for acyclic improper chromatic numbers of bounded degree graphs, we discern an asymptotic difference in only a very narrow range of choices for t.

La globalisation des marchés, la croissance rapide des pays émergents, le défi de la conception durable des produits et services et les besoins des population à bas revenu sont autant d'enjeux qui incitent les entreprises à chercher de nouvelles formes d'organisation et d'innovation y pour répondre. La théorie de la Base de la Pyramide (BoP) s'inscrit dans ce contexte actuel et propose de contribuer à la lutte contre la pauvreté tout en suivant une logique économique. Bien qu'elle soit relativement récente, la littérature sur cette thématique est multiple et s'inscrit aujourd'hui principalement en sciences de gestion et sciences économiques. Les apports dans le domaine de l'ingénierie sont encore assez peu nombreux et de multiples interrogations restent en suspens sur la faisabilité et l'opérationnalité d'une telle approche. L'objectif de ce travail de recherche est de comprendre en quoi les dynamiques d'innovation orientées Base de la Pyramide demandent de repenser les pratiques de conception actuelles, plus particulièrement l'ingénierie frugale. Ce procédé de conception, qui intègre des économies d'usage et de dépense, est exploré comme moyen de concevoir des produits et des services dans le double enjeu de lutte contre la pauvreté et de rentabilité économique. Nos contributions se situent sur deux axes. Le premier s'appuie sur une étude de 215 cas d'innovation BoP relatés dans la littérature pour proposer une catégorisation des stratégies appelées BoP. Cette catégorisation donne lieu à une lecture à multi-niveaux et permet de dégager des constats importants : la difficulté de combiner impact social et impact économique dans une même approche, la dichotomie marquée entre les stratégies de marché et les stratégies inclusives, ainsi que l'existence de multiples contextes BoP qui rend compte d'une tension entre l'assouvissement des besoins (impact local) et la recherche d'un changement d'échelle (impact global). Le deuxième axe de contribution porte sur la conception frugale, prise comme une approche possible orientée Base de la Pyramide. Nous définissons l'ingénierie frugale par la recherche du juste-suffisant entre la proposition d'une valeur essentielle et la recherche d'un bas coût. La proposition de nouveaux concepts, tels que les « Non Trade Off » (éléments non négociables) du processus de conception et l' « Adaptabilité » d'un produit, nous amène à interroger l'unicité de ce juste-suffisant. La valeur essentielle n'est pas un concept absolu et unique, mais se décline en une multitude de valeurs (re)définies par l'appropriation du produit lors de la conception, la fabrication et l'usage. Cette appropriation passe par des stratégies de focalisation sur des fonctionnalités essentielles, de façon à pouvoir répondre à un environnement pauvre en ressources et en infrastructures, réduire les coûts de production et d'assemblage et répondre à un besoin essentiel. La conception frugale s'inscrit alors dans une logique inclusive, où chaque partie prenante de la chaîne de valeur contribue à redéfinir le juste-suffisant d'un produit frugal en fonction du contexte. Ces résultats, issus de terrains empiriques en Inde et au Vietnam, permettent d'insister sur la prise en compte d'éléments de l'environnement contextuel dans la conception. Nous proposons de représenter ces éléments sous forme de Scènes, pour compléter les outils centrés-utilisateurs existants, et contextualiser la réflexion sur la valeur essentielle du produit. Pour conclure, de ces résultats émergent les prémisses d'un modèle ouvert de la conception frugale qui laisserait d'avantage de flexibilité aux populations de la Base de la Pyramide à s'approprier la valeur essentielle du produit conçu. Concevoir des produits ouverts, adaptables à la variabilité des contextes, permet ainsi d'œuvrer pour un développement plus durable. / Globalization of markets, rapid growth of emerging countries, challenges of a sustainable design and needs of low-income populations trigger companies to look for new forms of organization and innovation. The Base of the Pyramid (BoP) theory takes root on these challenges and suggests fighting against poverty while generating economic growth. Although recent, the literature on this topic is diverse and today falls mainly in management and economic sciences. The contributions in the field of engineering design are quite few, and many questions remain on the feasibility and operability of such an approach. The goal of this research is to understand how the dynamics of the BoP-oriented innovation may require rethinking current design practices. We will particularly explore frugal engineering, a design process that enrolls economy of use and expense, as a means to design products and services within the dual challenge of fighting against poverty and economic growth. Our contributions take place in two areas. The first one is based on a review of 215 BoP case-studies related in the literature: the outcome is a categorization of the BoP-called strategies. This categorization allows a multilevel reading that generates significant findings: the difficulty of combining social and economic impacts within the same approach, the dichotomy between market and inclusive strategies, as well as the existence of multiple BoP contexts which reflects a tension between needs' satisfaction (local impact) and economy of scale (global impact). The second area of contribution is about frugal design, taken as one possible BoP-oriented approach. We define frugal engineering as the search for a just-enough between a core value and a low-cost proposition. Our proposition of new concepts, such as the “Non Trade Off” during the design process and the “Adaptability” of the product, leads us to question the uniqueness of this just-enough. The core value is not an absolute concept; rather it comes in multiple values (re)defined during design, manufacturing and use phases of the product life cycle. This appropriation is made by focusing on key features of the product, in order to meet the environment, resource and infrastructure constrained, to reduce production and assembly costs, and to meet an essential need. Therefore, frugal design is incorporated in an inclusive logic, in which each stakeholder of the value chain contributes to redefine the just-enough of the product (and process). These results, obtained by empirical studies in India and Vietnam, emphasize the importance of contextual elements to take into account during frugal design. We propose the Scenes as a new tool for representing these elements. The Scenes complement the existing user-centered design tools, and help to contextualize the discussion on the core values of a frugal product. To conclude, the premises of an open frugal design emerge from this research. Such a model would leave more flexibility to the BoP users to appropriate themselves the product and define their essential values. Thus, designing open and adaptable products is a way to nourish a better sustainable development.

Sustainability and the penetration of new markets beyond developed industries are two topics that are gaining increasing attention both in research and in business practice. As Western industries are becoming saturated, companies are looking for further business alternatives and are focusing on North-South opportunities, among others. Therefore, bottom-of-the-pyramid markets are often mentioned as promising mass markets. However, market access remains a challenge, as bottom-of-the-pyramid contexts are characterized by low incomes, resource constraints, and infrastructural barriers. In addition, sustainable practices are a challenge. Since the introduction of the Sustainable Development Goals by the United Nations, which apply to all countries, companies are required to address aspects of sustainability in their business practices. However, they have to cope with conflicting dimensions inherent to sustainability such as improving economic and social aspects, which are usually accompanied by higher resource demands and environmental degradation. Previous literature started to address these issues by focusing on innovative approaches such as frugal innovation, social innovation, or resource-constrained innovation. In the last decade, research on frugal innovations has particularly focused on how to address the challenges of low-income and resource-constrained contexts, often with aspects of sustainability in mind. However, to address these low-income contexts, having a suitable innovation is not enough; businesses must actually reach the target group, such as by overcoming accessibility issues in rural areas. Initial research has examined the value chains of frugal innovations and ways to engage the consumer, which also leads to social improvements. Building on this research, this dissertation combines four themes – frugal innovation, sustainability, inclusive business, and Scrum – to illustrate how innovations can address the needs of target groups in bottom-of-the-pyramid contexts and how these innovations can be implemented by engaging target customers. The first paper illustrates the links between frugal innovation and sustainability based on a new sustainability evaluation framework. All cases considered contribute to sustainability, with social improvements being most notable. New employment and income opportunities are key social improvements. They reflect inclusive business approaches, which are the focus of the second paper. The case examples of the second paper show how frugal innovation can be implemented in accordance with inclusive business, which leads to customer involvement and thus mutually supports frugal innovation. The Inclusive Business Link Model for Frugal Innovation was built to show connections of frugal innovation and inclusive business and to provide application possibilities. A key finding was that for the cases considered a high level of customer integration can be achieved through frugal innovations with modular designs and is supported by knowledge transfer and partnerships. To address knowledge transfer and partnerships in particular, the last paper applies Scrum as an agile approach at the execution level for inclusive business. In developing the conceptual model Inclusive Business Scrum Approach, inclusive business is considered as the 'what' and Scrum as the 'how' in engaging low-income consumers. With regard to all three papers and the four included topics, this dissertation achieves several outcomes and contributes to a broader view of how low-income consumers can be addressed. First, each paper illustrates benefits of combining the concepts that could be valuable when addressing the bottom-of-the-pyramid context. Thereby, the papers build on each other and include previous results. Second, aspects of social sustainability are addressed mainly by combining frugal innovation and inclusive business. Third, each paper develops a model or framework intending to support practical applicability. Finally, an outline is provided for how combining frugal innovation, inclusive business, and Scrum positively could impact partnerships, knowledge transfer, and the empowerment of the target group, which could culminate in an approach that addresses challenges experienced when entering the Bottom of the Pyramid that also considers sustainability. The new management options developed begin at a general level and end at an execution level and thus contribute to holistic perspectives on innovations, approaches, and implementation options for organizations intending to address the Bottom of the Pyramid.:Abstract 1 Table of Contents 3 List of Abbreviations 6 List of Tables 7 List of Figures 8 1 Introduction 9 2 Theoretical background 15 2.1 Defining sustainability 15 2.2 The BoP as target group 18 2.3 Frugal innovation 20 2.4 Inclusive business 22 2.5 The agile approach Scrum 25 2.6 Contribution of the investigations and the current relevance of topics 28 3 Methodology 30 4 Papers 32 4.1 Publication 1: Introducing a Sustainability Evaluation Framework based on the Sustainable Development Goals applied to Four Cases of South African Frugal Innovation 32 4.1.1 Introduction 33 4.1.2 Theoretical background and research context 34 4.1.3 Methodology 38 4.1.4 Developing an evaluation framework 40 4.1.5 Limitations 44 4.1.6 Introducing the frugal cases 44 4.1.7 Findings 45 4.1.8 Discussion 48 4.1.9 Conclusion 49 4.2 Publication 2: How Frugal Innovation and Inclusive Business Are Linked to Tackle Low-income Markets 51 4.2.1 Introduction 51 4.2.2 Literature review 55 4.2.3 Methods 62 4.2.4 Results 66 4.2.5 Cross case analysis 75 4.2.6 Inclusive business integration stair model 77 4.2.7 Development of propositions 82 4.2.8 Discussion 84 4.2.9 Research implications 86 4.2.10 Managerial implications 87 4.2.11 Concluding remarks and future research 88 4.3 Publication 3: Boosting Inclusive Businesses’ Opportunities Through the Adoption of Scrum: an Execution Strategy to Enter Low-end Markets 91 4.3.1 Introduction 92 4.3.2 Theoretical background 94 4.3.3 Conceptual model: Inclusive Business Scrum Approach 99 4.3.4 Challenges 106 4.3.5 Summary of key facts and propositions 108 4.3.6 Conclusion 111 4.3.7 Research implications 112 4.3.8 Managerial implications 113 4.3.9 Limitations and future research ideas 114 5 Discussion 116 5.1 Social sustainability 117 5.2 Partnerships 118 5.3 Knowledge transfer 118 5.4 Empowering the target group 119 5.5 Context challenges 119 6 Critical considerations and additional thoughts 121 6.1 Definition and contributions of frugal innovation 121 6.2 Sustainability of initiatives at the BoP and inclusive business 122 6.3 Aspects of leadership theories in Scrum 124 7 Methodological limitations 126 8 Research implications and future research ideas 128 9 Managerial implications 131 10 Conclusion 133 11 References 135 11.1 List of interviews 171 11.2 Further references used in Publication 2, anonymized form 171

A closer look at innovation for and from emerging markets respectively developing economies reveals that a variety of different terms and concepts related to this type of innovation exist. The goal of my conceptual paper is to present a comprehensive overview of related terms and concepts and to suggest theoretical based classification criteria in order to differentiate them. After a first investigation in relation to innovation for and from emerging markets the keywords ‘reverse’, ‘frugal’, ‘jugaad’, and ‘bottom of the pyramid / bottom of pyramid / bop’ were identified and used for searching the database of Google Scholar. For further investigation only texts were considered with at least eight various terms. 19 different texts were identified which classified for a further analysis. As results 33 identified terms in relation to innovation for and from emerging markets, various spellings and synonyms and references with at least two mentions in the identified texts are presented. As theoretical based classification criteria ‘market orientation’, ‘determinants’ (of innovation for and from emerging market)’, ‘nature’ (of innovation for and from emerging markets), sophistication’, ‘sustainability’, ‘novelty’ and ‘innovator type’ were identified.

京都大学 / 0048 / 新制・課程博士 / 博士(情報学) / 甲第19114号 / 情博第560号 / 新制||情||99(附属図書館) / 32065 / 京都大学大学院情報学研究科社会情報学専攻 / (主査)教授 林 春男, 教授 田中 克己, 教授 喜多 一 / 学位規則第4条第1項該当 / Doctor of Informatics / Kyoto University / DFAM