Ec2204 tutorial 6(1)
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Transcript of Ec2204 tutorial 6(1)
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CENTRE FOR POLICY STUDIESUNIVERSITY COLLEGE CORK
EC2204TUTORIAL 6
W\S 19\11\2012
Academic Year: 2012/2013 Instructors: Brenda Lynch and PJ Hunt
Contact: [email protected] [email protected]
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Fig 9.1 Two goods, X and Y. Income fixed. Original consumer equilibrium is at X1, Y1 (Point A).
Price of X increases, the budget line
rotates inward on the X axis and the new consumer equilibrium is at X2, Y2 (point B).
![Page 3: Ec2204 tutorial 6(1)](https://reader036.fdocuments.in/reader036/viewer/2022082700/54bea4f84a7959bf048b4628/html5/thumbnails/3.jpg)
Y
I/Py
X
X1 I/Px
Y2
Y1
A
B
IC1
IC0
X2 I/Px
![Page 4: Ec2204 tutorial 6(1)](https://reader036.fdocuments.in/reader036/viewer/2022082700/54bea4f84a7959bf048b4628/html5/thumbnails/4.jpg)
This drop in utility is caused by; (a) The income effect and (b) The substitution effect.
(a) An increase in the price of X is like a drop in real income.
(b) The substitution effect is the adjustment of demand to a change in the relative prices of goods as a result of a change in the price of one of the goods.
![Page 5: Ec2204 tutorial 6(1)](https://reader036.fdocuments.in/reader036/viewer/2022082700/54bea4f84a7959bf048b4628/html5/thumbnails/5.jpg)
To isolate the substitution effect, remove the income effect by compensating the consumer just enough income to put him back on the original IC0.
Do this by drawing a line tangential to IC0 and parallel to new budget line. New intersect is at X3, Y3 (Point C).
The income effect reduces consumption of X from X3 to X2; the substitution effect reduces consumption from X1 to X3.
![Page 6: Ec2204 tutorial 6(1)](https://reader036.fdocuments.in/reader036/viewer/2022082700/54bea4f84a7959bf048b4628/html5/thumbnails/6.jpg)
I/Py
X
Y2
Y1
A
B
IC1
IC0
C
X3
Y3
A to C = Substitution EffectC to B = Income Effect
Fig. 9.1Y
x1I/Px I/PxX2
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Hicks and Slutsky. Inflation increases, how much do you compensate workers?Two ways (we only look at one way);
1. Compensation Variation in Income
Hicks, compensate workers at new prices to allow them obtain original level of utility.
Slutsky, compensate workers at new prices to obtain original bundle of goods.
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Fig. 9.2 – Compensation Variation
Original consumer equilibrium at point A. Price of one good doubles, budget line pivots inward. New consumer equilibrium is at point B.
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Hicks. Draw line parallel to new budget line and tangential to IC0 i.e. original utility on original IC. Compensation Variation = S –T
Slutsky. Draw line parallel to new budget line and tangential original consumer equilibrium i.e. original bundle of goods. Compensation Variation = R-T
![Page 10: Ec2204 tutorial 6(1)](https://reader036.fdocuments.in/reader036/viewer/2022082700/54bea4f84a7959bf048b4628/html5/thumbnails/10.jpg)
X
I/Px
A
B
IC1
IC0
C
r - t s – tSlutsky Hicks
Fig. 9.2Yrs
t
Slutsky
Hicks
I/Px