Economists often use an economic model that reflects the total amount of goods and services required at all possible price levels during a specific period of time. which term is most often used to describe the information contained in this model?
a. business cycle
b. market self-regulation
c. money demand curve
d. aggregate supply and demand

The answer is letter D.

Economists often use the aggregate supply and demand model to reflect the total amount of goods and services required at all possible price levels during a specific period. It reflects the overall price of foods and services in an economy for a given period and is often illustrated with the supply-demand curve. This shows the relationship between price levels and quantity of output that a particular firm is willing to provide to the general public.

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