Regardless of the handling fee, futures and foreign exchange are zero-sum games, so they are known for their high risks and high returns. Considering the handling fee, futures and foreign exchange are "negative sum transactions". If no new funds enter, the market funds will be sucked away by the handling fee sooner or later. Moreover, if someone loses money in futures and foreign exchange, someone must make money, not to create value, but to redistribute money. No, stocks can create virtual value, which is the so-called company value. All investors can make money, because the so-called company value has increased and the stock price has risen.

A zero-sum game is when two people play chess. In most cases, one side will win and the other side will lose. If we calculate the winner as 1 and the loser as-1, then the sum of the scores of two people is: 1+(- 1)=0. For example, poker is a zero-sum game. Poker can be played among friends, poker clubs or tournaments. Generally speaking, playing poker between friends is a typical zero-sum game. No matter who wins, others will lose, and the sum of their wins and losses is zero.

Negative sum game refers to the result of conflict and struggle between the two sides, that is, the gain is less than the loss, that is, the sum of the results we usually say is negative. It includes both lose-lose situations, and both sides have different degrees of losses; He also includes another game in which the "winner" gains less than the "loser" loses.