It is also harming others and benefiting themselves (that is, gaining benefits while the other party loses benefits). Is there a difference between positive sum game, negative sum game and zero sum game? Positive sum games are non-antagonistic or non-cooperative games, while negative sum games and zero sum games are antagonistic or non-cooperative games. In the positive sum game, the sum of the gains and losses of all parties in the game is greater than zero, and the interests of all parties are not harmed. This situation is efficient, fair and just, instead of harming others and benefiting themselves, it emphasizes collectivism and group rationality. A simple understanding is that * * * will win. In the "negative sum game", the sum of gains and losses of all parties in the game is less than zero, which is not a game of harming others and benefiting themselves, but a game of mutual loss. In the "zero-sum game", the sum of the gains and losses of all parties is always "zero", and their own gains are based on the losses of others, which is a game that harms others and benefits themselves. Should I report to the Economics Department? I suggest you learn advanced mathematics first. Many game theory formulas use high numbers. Look at some classic game models, hoping to help you. Seeking satisfaction and extra points, I am a pure hand ~