A marketing order for oranges has a fixed total supply of Q = 1,000 crates a month. Demand in the market for fresh oranges is Q1 = 220 − 0.2p and that in the market for processed orange products is Q2 = 1,000 − 2p. Calculate the competitive market-clearing price. What is the deadweight loss in both markets if the price of a crate of fresh oranges is raised to $200?
Demand for fresh oranges is Q1 = 220 - 0.2P and Demand for processed oranges is Q2 = 1000 - 2P .
Then, Q1+Q2 = 220 - 0.2P + 1000 - 2P
or, Q = 1220 - 2.2P is the aggregate demand curve
or, 1000 = 1220 - 2.2P
or, 2.2P = 220
or, P = 220/2.2 = $100
For the aggregate demand curve ,
When P= 0, Q = 1220
and When Q=0 , P=555(approx)
When price rises to $200,
Q = 1220- 2.2*200 = 780
Plotting all the point on demand and supply graph ,
As price increases to $200 and Q decreases to 780, here area a and b represents the dead weight loss .
Hence , dead weight loss = area a + area b = 1/2* base * height + length * breadth
= 1/2 * (1000-780) * (200-100) + (1000-780)*100
= 1/2*220*100 + 220*100
= 3/2*220*100
= 33000
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