Copy of Zero-sum game

"The term ""zero-sum game"" is derived from the fact that the sum of gains and losses among players is always zero. These types of games require a minimum of two players, but can include many more.   Popular examples of zero-sum games include board games such as Monopoly, and strategic games such as chess, bridge, and poker.  Zero-sum games are not limited to the realm of games, but also exist in economic theories and real-life applications such as futures and options trading on the stock market.