If S = 1P represents a country's home supply curve and D = 100 - 1P
Represents its home demand curve, then the equilibrium price and
Quantity in autarky are:

Question

Quizplus · Accepted Answer

The equilibrium price and quantity can be found by setting the supply and demand equations equal to each other: 
1P = 100 - 1P 
2P = 100 
P = 50

Substituting this price back into either equation gives us the equilibrium quantity: 
Q = 100 - 1(50) = 50

Therefore, the equilibrium price and quantity in autarky are $50 and 50 units.

If S = 1P Represents a Country's Home Supply Curve