Complement good Guide, Meaning , Facts, Information and Description
A complement good (or complementary good) is a good whose cross elasticity of demand is negative. This means that if more of Good A is bought, more of Good B would also be bought if they are complements. An example of complement goods are hamburgers and hamburger buns. If the price of hamburgers falls, more hamburger buns would be sold because the two are usually used together.The opposite of a complement good is a substitute good.
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