I have been reading about Peace Gaming. This concept, described by Utsumi Takeshi, involves global simulations involving "civilian" factors such as economy, manufacturing, and trade. It is an answer to the concept of war gaming, which is competitive and zero-sum.
Utsumi Takeshi's paper on Globally Collaborative Environmental Peace Gaming is a particularly interesting read. In it he describes initiatives in creating a global peace gaming system that uses a grid of computers around the world.