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If a country produces only two goods, then it is not possible to have an absolute advantage in the production of both goods.
Primary Reinforcer
A stimulus that fulfills a basic biological need or instinct, such as food, water, or sleep, and is inherently rewarding.
Secondary Reinforcer
A stimulus that has become rewarding through its association with a primary reinforcer.
Negative Reinforcer
An unpleasant or aversive stimulus that, when removed or avoided following a behavior, increases the likelihood of that behavior being repeated.
Positive Reinforcer
A stimulus which, when presented after a behavior, increases the likelihood of that behavior being repeated.
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