The development and utilization of global/world models in the context of political implications of world economic trends is overviewed in terms of three streams of research, that of the multidisciplinary social scientists, of the econometricians, and of the system engineers. Socio-political processes impinge on world economic trends, just as such trends in turn impact on politics, both national and international. The use of simulations rich in system dynamics for the study of international affairs is found to have much potential, as documented in findings obtained by researchers throughout the world.