Examlex
In older systems, often the user interface mainly consisted of ____-control screens that allowed a user to send commands to the system.
Price Elasticity
An indication of the extent to which the demand or supply of a product alters following a variation in its price.
Substitutes
Products or services that can be used in place of each other, where the increase in price of one leads to an increase in demand for the other.
Complements
Items or services used together, where the use of one increases the demand for the other.
Consumer Surplus
The variance between the aggregate amount consumers intend and can afford to pay for a good or service and the total they actually do pay.
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