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In economics and game theory, the decisions of two or more players are called strategic complements if they mutually reinforce one another, and they are called strategic substitutes if they mutually offset one another. These terms were originally coined by Bulow, Geanakoplos, and Klemperer (1985).
Only if the two products satisfy the three conditions, will they be classified as close substitutes according to economic theory. The opposite of a substitute good is a complementary good, these are goods that are dependent on another. An example of complementary goods are cereal and milk. An example of substitute goods are tea and coffee.
Goods considered complements or substitutes are relative associations and should not be understood in a vacuum. The degree to which a good is a substitute or a complement depends on its relationship to other goods, rather than an intrinsic characteristic, and can be measured as cross elasticity of demand by employing statistical techniques such ...
Thus independent goods are neither complements nor substitutes. For example, a person's demand for nails is usually independent of his or her demand for bread, since they are two unrelated types of goods. Note that this concept is subjective and depends on the consumer's personal utility function.
In auction theory and competitive equilibrium theory, a valuation function is said to have the gross substitutes (GS) property if for all pairs of commodities: () (). I.e., the definition includes both substitute goods and independent goods , and only rules out complementary goods .
In economics, a complementary good is a good whose appeal increases with the popularity of its complement. [ further explanation needed ] Technically, it displays a negative cross elasticity of demand and that demand for it increases when the price of another good decreases. [ 1 ]
Complementary assets are assets that when owned together increase the value of the combined assets. It is defined as “the total economic value added by combining certain complementary factors in a production system, exceeding the value that would be generated by applying these production factors in isolation.” [1] Thus two assets are said to be complements when investment in one asset ...
In economics, gross substitutes (GS) is a class of utility functions on indivisible goods.An agent is said to have a GS valuation if, whenever the prices of some items increase and the prices of other items remain constant, the agent's demand for the items whose price remain constant weakly increases.