This book constitutes the refereed proceedings of the 12th International Conference on
Economics of Grids Clouds Systems and Services GECON 2015 held in Cluj-Napoca Romania in
September 2015. The 11 revised full papers and 10 paper-in-progress presented were carefully
reviewed and selected from 38 submissions. The presentation sessions that have been set up are:
resource allocation service selection in clouds energy conservation and smart grids
applications: tools and protocols community networks and legal and socio-economic aspects.
