ECONOMICS (CBSE/UGC NET)

ECONOMICS

ELASTICITY OF DEMAND

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
JUN 2016 1.3 11-In the market for a good the quantity supplied (QS) and the quantity demanded (QD) are given by QS = P-30 and QD = 240-2P where P = price in dollars.A change in the tax on the good makes QS = P-36.How will the change affect equilibrium price?
A
It will fall by $2
B
It will fall by $6
C
It will rise by $2
D
It will rise by $6
Explanation: 

Detailed explanation-1: -To find the equilibrium price a mathematical formula can be used. The equilibrium price formula is based on demand and supply quantities; you will set quantity demanded (Qd) equal to quantity supplied (Qs) and solve for the price (P). This is an example of the equation: Qd = 100-5P = Qs =-125 + 20P.

Detailed explanation-2: -The result of the price floor is that the quantity supplied, Qs, exceeds the quantity demanded, Qd. There is excess supply, also called a surplus.

Detailed explanation-3: -You use the supply formula, Qs = x + yP, to find the supply line algebraically or on a graph. In this equation, Qs represents the number of supplied hats, x represents the quantity and P represents the price of hats in dollars. Assume that at a price of $1, the demand is 100 hats.

There is 1 question to complete.