Diffusion of innovations is a theory that seeks to explain how, why, and at what rate new ideas and technology spread. The theory was popularized by Everett Rogers in his book Diffusion of Innovations, first published in 1962. Rogers argues that diffusion is the process by which an innovation is communicated over time among the participants in a social system. The origins of the diffusion of innovations theory are varied and span multiple disciplines.
Rogers proposes that five main elements influence the spread of a new idea: the innovation itself, adopters, communication channels, time, and a social system. This process relies heavily on social capital. The innovation must be widely adopted in order to self-sustain. Within the rate of adoption, there is a point at which an innovation reaches critical mass. In 1989, management consultants working at the consulting firm Regis Mckenna Inc. theorized that this point lies at the boundary between the early adopters and the early majority. This gap between niche appeal and mass (self-sustained) adoption was originally labeled "the marketing chasm"
The categories of adopters are innovators, early adopters, early majority, late majority, and laggards. Diffusion manifests itself in different ways and is highly subject to the type of adopters and innovation-decision process. The criterion for the adopter categorization is innovativeness, defined as the degree to which an individual adopts a new idea.
The concept of diffusion was first studied by the French sociologist Gabriel Tarde in late 19th century and by German and Austrian anthropologists and geographers such as Friedrich Ratzel and Leo Frobenius. The study of diffusion of innovations took off in the subfield of rural sociology in the midwestern United States in the 1920s and 1930s. Agriculture technology was advancing rapidly, and researchers started to examine how independent farmers were adopting hybrid seeds, equipment, and techniques.
Cette page est générée automatiquement et peut contenir des informations qui ne sont pas correctes, complètes, à jour ou pertinentes par rapport à votre recherche. Il en va de même pour toutes les autres pages de ce site. Veillez à vérifier les informations auprès des sources officielles de l'EPFL.
In business, diffusion is the process by which a new idea or new product is accepted by the market. The rate of diffusion is the speed with which the new idea spreads from one consumer to the next. Adoption is the reciprocal process as viewed from a consumer perspective rather than distributor; it is similar to diffusion except that it deals with the psychological processes an individual goes through, rather than an aggregate market process.
En sciences humaines et sociales, l'expression réseau social désigne un agencement de liens entre des individus ou des organisations, constituant un groupement qui a un sens : la famille, les collègues, un groupe d'amis, une communauté, etc. L'anthropologue australien John Arundel Barnes a introduit l'expression en 1954. L'analyse des réseaux sociaux est devenue une spécialité universitaire dans le champ de la sociologie, se fondant sur la théorie des réseaux et l'usage des graphes.
En théorie des graphes, un réseau complexe est un réseau possédant une architecture et une topologie complexe et irrégulière. Comme tous les réseaux, ils sont composés de nœuds (ou sommets ou points) représentant des objets, interconnectés par des liens (ou arêtes ou lignes). Ces réseaux sont des représentations abstraites des relations principalement présentes dans la vie réelle dans une grande diversité de systèmes biologiques et technologiques.
This class will provide students with an understanding of some real-world issues related to the "knowledge economy". Why should we innovate as a society? Why innovation doesn't just happen and how can
This course addresses the design of policies for Grand Challenges. It aims at providing a policy toolkit - about innovation, economic regulation and societal inclusion - while supporting students abou
Le cours sensibilise les étudiant-es à l'importance des marchés émergents dans le paysage mondial de l'innovation. Il propose des outils de modélisation pour analyser des innovations produits/services
This course deals with innovation policies for regional development. It provides numerous perspectives regarding the concept of smart specialisation and presents the tools and methods necessary for de
Ce cours traite des politiques d’innovation pour le développement régional. Il fournit de multiples éclairages sur le concept de spécialisation intelligente et présente les outils et les méthodes pour
La série explore les impacts sociétaux de la science et de la technologie grâce à une analyse détaillée de la pratique et à l'application de modèles théoriques.
Plonge dans l'innovation sociale, explorant des solutions efficaces aux problèmes sociaux et environnementaux à travers des études de cas comme Aravind Eye Care et PlayPumps.
Connected and autonomous vehicles (CAV) have seen a rapid development over the past decade. However, wide diffusion of high level CAVs is still decades to come, and will depend on many technological, policy and public acceptance factors. Merging a traditio ...
Pre-adoption phases of innovation are understudied in the innovation literature. This article addresses preadoption phases of innovation by running a prospective analysis. We assess the readiness of municipalities for the adoption of a digital tool that br ...
Unraveling the complexities of brain function, which is crucial for advancing human health, remains a grand challenge. This endeavor demands precise monitoring of small molecules such as neurotransmitters, the chemical messengers in the brain. In this Pers ...