Answer: D
Explanation:
When country abandons a no-trade policy in favor of a free-trade policy. as a result, the domestic price of beans increases to equal the world price of beans, then at the world price, the quantity of beans supplied in that country exceeds the quantity of beans demanded in that country. that country becomes an exporter of beans, that country has a comparative advantage in producing beans.
Answer:
In order for differential reinforcement to be most effective, the desirable behavior should be reinforced: immediately.
Explanation:
A reinforcement can encourage or discourage a certain behavior. For instance, if you are complimented by your parents when you get good grades, you may feel encouraged to get more good grades in the future. The compliments are a reinforcement. Differential reinforcement happens when only the desired or targeted behavior is reinforced. Other responses or behavior are not reinforced whatsoever. However, for differential reinforcement to work, it has to be done immediately, otherwise the association between reinforcement and behavior will not be so strong.
