A diffusion model for the adoption of agricultural innovations in structured adopting populations

We introduce a new model for examining the dynamics of uptake of technological innovations in agricultural systems, using the adoption of zero-till wheat in the rice-wheat system in Haryana state, India, as a case study. A new equation is derived which describes the dynamics of adoption over time and takes into account the effect of aggregation (e.g. on a spatial and/or cultural basis) in the adopting population on the rate of adoption. The model extends previous phenomenological models by removing the assumption of homogeneity in the non-adopting fraction of the population. We show how factors affecting the per capita rate of adoption can be captured using cognitive mapping and simulate the dynamics of the adoption process.


Issue Date:
2008
Publication Type:
Working or Discussion Paper
PURL Identifier:
http://purl.umn.edu/61117
Total Pages:
43
Series Statement:
Working Paper
29




 Record created 2017-04-01, last modified 2017-04-04

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