This course presents a formal treatment of game theory, particularly noncooperative game theory, developed during the 50s and 60s that concerns cooperative game theory. Recently, however, the emphasis has shifted toward noncooperative game theory to the point where noncooperative game theory has become a very important tool for microeconomics, industrial organizations, marketing, environmental regulations, international negotiations and others, The game theory is not a theory of fame itself, rather it is the multi-person decision theory, theory of competition, or theory of conflicts.