Examlex
In considering Piaget's description of primary circular reactions, the word primary indicates that babies are:
Berries
Fruits that are characterized by their soft texture and seed-containing interior; commonly consumed fresh or in various culinary preparations.
Utility Function
A mathematical representation of how different bundles of goods or services are ranked in terms of their utility or satisfaction to a consumer.
Marginal Rate of Substitution
The rate at which a consumer is willing to substitute one good for another while maintaining the same level of utility.
Good X
A symbolic term often used in economics to represent any generic commodity or product under consideration for analysis.
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