| Description | Term/Concept |
| The measure of responsiveness of quantity demanded to a change in price | |
| When the quantity demanded is greater than the percentage change in price (elasticity of demand > 1) | |
| When the quantity demanded is less than the percentage change in price (elasticity of demand < 1) | |
| Demand with a price elasticity equal to 1; the percentage change in quantity demanded is equal to the percentage change in price | |
| The amount sellers receive for a good or service, calculated as the product price times the quantity sold | |
| The measure of the impact that a price change of one good will have on the quantity demanded of another good at a given price | |
| The measure of the responsiveness of the quantity demanded of a good to a change in consumer's income | |
| The measure of the sensitivity of the quantity supplied to changes in price of a good | |
| the opportunity costs of production that require a monetary payment | |
| the opportunity costs of production that do not require a monetary payment | |
| The difference between total revenues and total costs | |
| Total revenues minus total explicit costs | |
| Total revenues minus explicit and implicit costs | |
| Costs that have been incurred and cannot be recovered | |
| A period of time too brief for some production inputs to be varied | |