AGRICOLA IND 90019481, Technical change is dynamic, recursive, and endogenous to the economic system. However, empirical studies usually treat technology as exogenous, defining technical change in terms of its end result: changes in some production possibilities set. An endogenous view of technical change is necessary to understand, anticipate, and perhaps alter the development and use of new technologies and their associated problems. This article outlines a conceptual framework in which technical change is endogenous. The framework accounts for the dynamic and recursive interactions between research and development activities, the adoption and diffusion of new innovations, and the regulatory and institutional environment. As an example, the development of glyphosate-tolerant crops is discussed to show how the framework can be used to identify, organize, and understand the important variables and relationships for a specific case of technical change.
Damhorst, Mary Lynn (author), Lennon, Sharron J. (author), Kim, Minjeong (author), Johnson, Kim K.P. (author), Jolly, Laura D. (author), and Jasper, Cynthia R. (author)
Format:
Journal article
Publication Date:
2007-04
Published:
USA
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C30541
Examines adaptation as a dynamic diffusion of innovations process in which adopters change innovations according to their individual needs. Adaptation may be explained by three factors: (a) the differing interpretation of innovation components by individual adopters, (b) an individual's level of adopter innovativeness or readiness to accept change and [c] the generative learning process whereby an individual relates new information prior knowledge and experience. Adaptation may occur unconsciously at the beginning of the diffusion process. Those who study the adaptation process should begin at the initial awareness state when potential adopters are forming their opinions and ideas about an innovation. Author uses an example involving a group of Kalahari bushmen first considering a sample of soft drink that they are told can quench thirst.
INTERPAKS, Offers an analysis of the conventional literature on adoption practices and adoptive categories. Examines the theoretical basis, and the empirical validity of adoption categories, as well as the extension worker's reliance on adoption categories for the dissemination of information in development activities and in research. Observation has led to the conclusion that adopter categories which can be empirically identified have been erroneously used in practice while the theory on which they are based is questionable. Draws attention to some of the dysfunctional effects of this largest grouping and the trickle down strategy used in extension for rural development. The analysis calls for a different approach to the categorization of the farming community. The main aim is to start with the people and then categorize the social system according to some important variables which will result in a homogeneous target group being isolated for specific extension activities.
