Zero-sum game

Zero-sum game
A game wherein one player can only gain at the expense of another player.
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Math
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Zero-sum games are those in which the total benefit to all players in the game adds to zero (or more informally put, that each player benefits only at the expense of others).

Zero-sum game
When the gains made by winners in an economic transaction equal the losses suffered by the losers. It is identified as a special case in GAME THEORY. Most economic transactions are in some sense positive-sum games.

Zero-sum game
A type of game wherein one player can gain only at the expense of another player.
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Zero-Sum Game - A situation in which one participant's gains result only from another participant's equivalent losses. The net change in total wealth among participants is zero; the wealth is just shifted from one to another.

Zero-sum game A game in which any gains within the group are exactly offset by equal losses by the end of the game.

ZERO-SUM GAME: A situation in which a fixed amount is divided up among the winners and losers. In a zero-sum game the wins equal the losses. Many stock market, or financial market, exchanges are zero-sum.

Out-performing the market is also a zero-sum game.
If you get more than half your picks right, you will beat the market.
It is very easy for stock pickers to cherry pick numbers that make them look good.

Many researchers argue that trading on inside information is a zero-sum game, benefiting insiders at the expense of outsiders. But most outsiders who bought from or sold to insiders would have traded anyway, and possibly at a worse price (Manne 1970).

All of the stock trading that has taken place over that period has been a zero-sum game. Certainly some investors who bought recently have made excellent returns.

Like all futures markets, trade in commodity futures is known to be a zero-sum game, meaning that one party to a trade makes as much as the other loses.

Used for listed equity securities. Transaction at the same price as the preceding trade, but higher than the preceding trade at a different price. Antithesis of zero-minus tick. See: Short sale.
Zero-sum game ...

zero-sum game A situation where the one participant's gains are only the result of another... ZEW Survey - Euro Zone A German Firm, the Center for European Economic Research (ZEW), queries financial...

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Zero-one integer programming An analytical method that can be used to determine the solution to a capital rationing problem. Zero-sum game A type of game wherein one player can gain only at the expense of another player. ...

See also: Expense, Checking account, Zero-coupon bond, Rationing, Tick