ABSTRACT
“New Sciences” is a term used to refer to a group of natural science theories that have implications for the social sciences in general, and public policy and administration in particular. The philosophy and methods of the new sciences are evolving, and there is no definitive list of theories that are commonly considered as the new sciences, but quantum mechanics, chaos and complexity theories, autopoiesis theory, and fuzzy logic are the ones from which implications have been drawn for the social sciences. These are the theories that will be discussed in this entry.
