Price elasticity demand formula
end point
formula
epd= [q2-q1/q1]/[p2-p1/p1]
midpoint
formula
epd= [q2-q1/(q2+q1)/2] / [p2-p1/(p2+p1)/2]
The formula for computing elasticity of demand is: (Q1 - Q2) / (Q1 + Q2) ------------------------------ (P1 - P2) / (P1 + P2)
1)price elasticity of demand 2)income elasticity of demand 3)cross elasticity of demand
% change in quantitydemanded divided by % change in price.
Unitary elasticity is when the price elasticity of demand is exactly equal to one.
When we compute price elasticity between any two points on a demand curve, we get a different answer depending on which point we choose to start and which point we choose to finish if we take the change in price and quantity as a percent of the starting value for each. With the midpoint method, the percentage changes in quantity and price are calculated by dividing the change in the variable by the average or midpoint value of the two points on the curve, not the starting point on the curve. In other words, it avoids the problem of getting a different answer when we computer price elasticity between any two points on a demand curve and it calculates by dividing the change in the variable by the midpoint value of the two points on the curve instead of the starting point on the curve. That is the advantage of using the midpoint method for calculating elasticity.
The formula for computing elasticity of demand is: (Q1 - Q2) / (Q1 + Q2) ------------------------------ (P1 - P2) / (P1 + P2)
formula for the arc elasticity of demand
1)price elasticity of demand 2)income elasticity of demand 3)cross elasticity of demand
% change in quantitydemanded divided by % change in price.
Unitary elasticity is when the price elasticity of demand is exactly equal to one.
When we compute price elasticity between any two points on a demand curve, we get a different answer depending on which point we choose to start and which point we choose to finish if we take the change in price and quantity as a percent of the starting value for each. With the midpoint method, the percentage changes in quantity and price are calculated by dividing the change in the variable by the average or midpoint value of the two points on the curve, not the starting point on the curve. In other words, it avoids the problem of getting a different answer when we computer price elasticity between any two points on a demand curve and it calculates by dividing the change in the variable by the midpoint value of the two points on the curve instead of the starting point on the curve. That is the advantage of using the midpoint method for calculating elasticity.
distinguish between price elasticity of demand and income elasticity of demand
1) Point elasticity is measured by the ratio of the lower segment of the curve below the given point to uppa segment the super part of the curve above the point. 2) Arc elasticity is measured by the use of mid point between the old & the new figures in the case of both prine and qualitiy demonded.
by the formula : %changge in quantity demanded/% change in price of good
it gives you the midpoint of the line segment you use the formula for
I am at a loss for the answer please help me.
there are three methods of measuring elasticity of demand