Information and phase transitions in socio-economic systems
- Equal contributors
1 Centre for Research in Complex Systems, Charles Sturt University, Panorama Ave, Bathurst NSW 2795, Australia
2 Department of Informatics, University of Sussex, Falmer, Brighton BN1 9QH, UK
3 Department of Civil Engineering, University of Sydney, Sydney, NSW, Australia
Complex Adaptive Systems Modeling 2013, 1:9 doi:10.1186/2194-3206-1-9Published: 8 April 2013
We examine the role of information-based measures in detecting and analysing phase transitions. We contend that phase transitions have a general character, visible in transitions in systems as diverse as classical flocking models, human expertise, and social networks. Information-based measures such as mutual information and transfer entropy are particularly suited to detecting the change in scale and range of coupling in systems that herald a phase transition in progress, but their use is not necessarily straightforward, possessing difficulties in accurate estimation due to limited sample sizes and the complexities of analysing non-stationary time series. These difficulties are surmountable with careful experimental choices. Their effectiveness in revealing unexpected connections between diverse systems makes them a promising tool for future research.