ECON 3070 Chapter Notes - Chapter 5: Engel Curve, Demand Curve, Inferior Good

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amethystgnat297

18 Jan 2019

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Document Summary

What happens to the consumer"s choice of food when the price of food changes while the price of clothing and the amount of income remain constant? two ways to answer: Using the optimal choice diagram draw a curve connecting all of the baskets that are optimal as the price of food changes(price consumption curve) Optimal choice diagram the consumer purchases more food when her income rises. The demand curve the consumer"s demand curve for food shifts out as income rises income consumption curve: the set of utility-maximizing baskets as income varies (and prices and held constant) Engel curve: a curve that relates the amount of a commodity purchased to the level of income, holding constant the prices of all goods the way of showing how a consumer"s choice of a particular good varies with income. Normal good: a good that a consumer purchases more of as income rises.

Related Questions

This question explores the quasi-linear utility function. Consider Thomas who has preferences over food, QF, and clothing, QC. His preferences are represented by

U (QF,QC) = [alpha]QF^(1/3) + QC

where [alpha] > 0. Let pF, pC, and I represent the prices of food, clothing, and Thomas's budget for food and clothing.

i. Using the Lagrangian method, solve mathematically for the demand function for each good. Make sure to show each step of your work.

ii. Determine whether food and clothing are normal or inferior goods for Thomas. Prove your answer mathematically.

iii. Are food and clothing substitutes or complements for Thomas? Prove your answer mathematically.

iv. Now assume that [alpha] = 3, and I = $1,224.

1. If pf = $3, and pc = $12 what is Thomas's demand for food and clothing?

2. If the price of food goes down to pf = $4/3, what happens to Thomas's demand for food and clothing?

3. If Thomasâ income falls to $996, what happens to quantity consumed of each good?

4. Graph Thomas's inverse demand curve (i.e price on y-axis, quantity on x-axis) for food when his income is I = $996 and the price of clothing is pc = $12. Be as precise as possible, labeling the exact value of any important points on the graph.

mauvefox570

budget line

marginal utility

complete property of preferences

market demand

consumption bundle

substitution effect

Giffen good

total effect

income effect

transitive property of preferences

indifference curves

utility

the marginal rate of substitution

utility function

1.	_____	The satisfaction or benefit that consumers receive from consuming goods or services.
2.	________________ _	A particular combination of specific quantities of goods or services
3.	________________ _	Consumers can rank all conceivable bundles of goods or services
4.	_____	If A is preferred to B, and B is preferred to C, then A is always preferred to C.
5.	_____	Equation showing a consumerâs perception of the total utility forthcoming from consuming each bundle of goods and services.
6.	_____	A set of consumption bundles each and every one of which provides a consumer with exactly the same level of total utility.
7.	_____	The number of units of Y that must be given up for total utility to remain the same when one more unit of X is consumed.
8.	_____	The addition to total utility attributable to consuming one more unit of a good, holding the consumption of all other goods constant.
9.	_____	The line showing all bundles of goods that can be purchased at given prices if the entire income is spent.
10.	_____	The change in the consumption of a good that would result if the consumer remained on the original indifference curve after the price of the good changes.
11.	_____	The change in consumption of goods results strictly from the change in purchasing power after the price of a good changes.
12.	________________ _	The sum of the substitution and income effects.
13.	_____	A good for which quantity demanded varies directly with price, causing an upward sloping demand curve.
14.	_____	A list of prices and the corresponding quantity consumers are willing and able to purchase at each price.