In this paper, we introduce the Grand Unified Theory of Economics. The search for a Grand Unified Theory is the Holy Grail of a number of fields. The search for a Grand Unified Theory of Physics still continues. In this paper, we establish a unified theory of economics that unifies Marxist perspectives with mainstream economics. This paper presents what is effectively a whole new theory of economics. It establishes beyond a reasonable doubt that markets have significant weaknesses, and that Artificial Intelligence Information Systems are likely to contribute to massive unemployment in the near future. Towards this, it also exposes a fatal flaw in the capitalistic system governing the United States and the Western World today in that governments are not planning sufficiently towards this possibility. We juxtapose this economic theory with theory of organizations to show how organizations in an economy are now likely to behave. Further, we have discovered a truly ungappable hole in the Libertarian theories of economics, and believe that we have proven that Libertarianism is no longer a viable political philosophy. By unifying Marxism with mainstream economics, by disproving Libertarianism, and by pointing to the future of employment markets globally, we believe that we have achieved much with this paper. We believe that this paper is the first paper that can be said to present a Grand Unified Theory of Economics.