Joint demand

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In economics, joint demand is a kind of demand that occurs when the demand for two or more products (or services) are interdependent, normally because they are used together. The demand for razor blades may depend upon the number of razors in use; this is why razors have sometimes been sold as loss leaders, to increase demand for the associated blades. [1]

There is some similarity to the concept of derived demand.


  1. ^ Future Observatory