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Suppose that instead of a supply-demand diagram, you are given the following information:
Qs = 100 + 3P
Qd = 400 - 2P
From this information compute equilibrium price and quantity. Now suppose that a tax is placed on buyers so that
Qd = 400 - 2(P + T).
If T = 15, solve for the new equilibrium price and quantity. (Note: P is the price received by sellers and P + T is the price paid by buyers.) Compare these answers for equilibrium price and quantity with your first answers. What does this show you?
Total Revenue
The complete amount of income generated by the sale of goods or services before any costs are subtracted.
Total Cost
The sum of all costs incurred by a business in the production of goods or services, including both fixed and variable costs.
Short-Run Supply Curve
A curve showing the relationship between the price of a good and the quantity supplied over a short period, where some production inputs are fixed.
Marginal Cost
The cost to produce one additional unit of a good or service.
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