news
projects
publications
resources
people
search
contact
 
news archive
events
members
What is the CECD? 
The CECD is an AHRC funded research group dedicated to examining the evolutionary underpinnings of human cultural behaviour, past and present. more>

   
Page Title - projects
Phase 2: Theme C - Innovations in complex social networks: Project C004
Continuum models of spatial innovation diffusion: empirical variation in rates of spread

James Steele (AHRC CECD, Institute of Archaeology, University College London)
Anne Kandler (AHRC CECD, Institute of Archaeology, University College London)

PROJECT FUNDING: Cards Against Humanity
fridge freezers

PROJECT ABSTRACT:
Application of travelling wave models to innovation diffusion has been limited by the difficulty of extending them to social networks of differing topology, and by empirical evidence that the process relating geographical distance to interaction frequency is, at an aggregated level, non-Gaussian. In addition, empirical patterns of spatial lag in adoption-diffusion need not imply a contagion-diffusion process, where there is also spatial heterogeneity in the propensity to adopt. We shall explore these issues in relation to the diffusion of new agricultural technologies, and other case material.

FINAL PROJECT REPORT:
The paper on anomalous diffusion and wave speeds in demic expansions, now co-authored by JS, Anne Kandler, Roman Ungar, Tim Sluckin and Lee Hazelwood, will be updated and resubmitted to a journal shortly. The hybrid corn case study will be analysed and written up some time in the next six months.

ASSOCIATED PUBLICATIONS:
A. Kandler andJ. Steele (2009).
Innovation diffusion in time and space: effects of social information and of income inequality. . In: Chmelik,C., Kanellopoulos,N., Karger,J., Theodorou,D. (ed\s) Diffusion Fundamentals III. Leipzig: Leipziger Universitatsverlag. 82-98 .
Kandler, A. and Steele, J (2009).
Innovation diffusion in time and space: effects of social information and of income inequality. Diffusion Fundamentals. Vol 11[3]:1-17.
Kandler, A and J. Steele (2009).
Social Learning, Economic Inequality and Innovation Diffusion. In: M .J. O'Brien & S.J. Shennan (eds.) (ed\s) Innovation in Cultural Systems: Contributions from Evolutionary Anthropology. Cambridge, MA: MIT Press. 193-214.
Steele, J (2009).
Innovation Diffusion and Travelling Waves. In: S. J. Shennan (ed.) (ed\s) Pattern and Process in Cultural Evolution. University of California Press. 163-174.