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In economics, the word competition means that there are at least two players who want to get a share of a market. The market is divided between all the economic players; this means that if a player gets a higher market share, another player will get a smaller share of the market. In his work, The Wealth of Nations, Adam Smith says that all players uses the resources they have so that they will get the most profit from these resources. According to Smith, this encourages efficiency. Game theory looks at competition, from a mathematical point of view.
Different forms of competition
- Products that perform the same function, and that are interchangeable, compete against each other; this is known as Direct competition
- Products that are substitutes compete; an example might be butter competing with margarine
- The broadest form is usually called budget competition: People have an amount of money they can spend each month; all the different products the consumers spend their money on, in a given month compete with each other.
Note that competition does not necessarily involve different companies; in the 1920s, General Motors had divisions that overlapped, and that competed for resources. Procter & Gamble introduced the cometition between different brands in the 1930s.
Other factors that limit competition include the existence of cartels.