Question

(Figure: Price and Quantity 2) At a cost of $20 per unit in the diagram, the value of the unexploited gains from trade is: Pr
1 po A market can be described by the equations Qd = 50 - 3 P and Qs =2 P. What are the equilibrium price and quantity in thi
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Answer #1

1. D
(Unexploited gains from trade = E + F = area of triangle = (1/2)*base*height = (1/2)*(50-20)*(80-20) = (1/2)*30*60 = 900)

2. D
(At equilibrium,Qd = Qs.
So, 50 - 3P = 2P
So, 2P + 3P = 5P = 50
So, P = 50/5 = 10
Q = 2P = 2*10 = 20)

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