Template-type: ReDIF-Paper 1.0
Author-Name: Lafond, Francois
Author-Email: lafond@merit.unu.edu
Author-Workplace-Name: UNU-MERIT / MGSoG
Title: Self-organization of knowledge economies
Abstract: Suppose that homogenous agents fully consume their time to invent new 
	 ideas and learn ideas from their friends. If the social network is 
	 complete and agents pick friends and ideas of friends uniformly at 
	 random, the distribution of ideas’ popularity is an extension of the 
	 Yule-Simon distribution. It has a power-law tail, with an upward or 
	 downward curvature. For infinite population it converges to the 
	 Yule-Simon distribution. The power law is steeper when innovation is 
	 high. Diffusion follows S-shaped curves.  
Classification-JEL: D83, D85, O31, O33
Keywords: innovation, diffusion, two-mode networks, cumulative advantage,
	 quadratic attachment kernel, power law, Yule-Simon distribution,
	 generalized hypergeometric distribution
Series: UNU-MERIT Working Papers
Creation-Date: 2013
Number: 040
File-URL: http://www.merit.unu.edu/publications/wppdf/2013/wp2013-040.pdf
File-Format: application/pdf
File-Size: 275 Kb
Handle: RePEc:unm:unumer:2013040