ipc2602

Introduction In everyday use the “theory” often means an untested hunch or a guess without supporting evidence. But for political scientists, a theory has nearly the opposite meaning. A theory is a well-substantiated explanation of an aspect of the natural world that can incorporate laws, hypotheses and facts. The theory of gravitation, for instance, explains why apples fall from the trees and astronauts float in space. Similarly, the theory, the theory of evolution explains why so man...