See also Scale-free networks
A power law distribution for has the form:
where is the exponent,
Lorenz curves for power law distributions
Zipf, Power-laws, and Pareto - a ranking tutorial
http://www.necsi.edu/guide/concepts/powerlaw.html
Similarity of Symbol Frequency Distributions with Heavy Tails
Top-heavy distributions
Power laws often mean that rare events are more likely that one could have thought, because the tail "dies off" more slowly than in, say exponential distributions, like Gaussians
Power Law Distributions, 1/f Noise, Long-Memory Time Series
Similarity of Symbol Frequency Distributions with Heavy Tails