1.2.3: Price, Income & Cross Elasticities Of Demand Flashcards

1
Q

What are price elasticities of demand (PED)?

A

The responsiveness of demand to a change in price of a good.

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2
Q

PED greater than 1 =

A

Elastic.

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3
Q

PED = 1 =

A

Unitary elastic.

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4
Q

PED less than 1 =

A

Inelastic.

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5
Q

What is elastic (PED)?

A

•Where quantity demanded changes by a larger % than price.
•Demand is relatively responsive to price.
(PED > 1).

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6
Q

What is unitary elastic (PED)?

A

•Where quantity demanded changes by the same % as price.
PED = 1.

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7
Q

What is inelastic (PED)?

A

•Where quantity demanded changes by a smaller % than price.
•Demand is relatively unresponsive to price.
(PED < 1).

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8
Q

What is an example of an inelastic graph?

A
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9
Q

What is an example of an elastic graph?

A
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10
Q

What are the factors that influence price elasticities of demand (PED)?

A

Substitutes available
Proportion of income
Luxury/neccesities
Addictiveness/habitual
Time frame
Brand loyalty

SPLAT B

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11
Q

What is the significance of price elasticities of demand (PED)?

A

PED determines the effects of imposition of taxes:
-The more elastic the demand curve, the lower the tax on the consumer.
-The more inelastic the demand curve, the higher the tax revenue for the government.

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12
Q

What are income elasticities of demand (YED)?

A

The responsiveness of demand to a change in income.

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13
Q

YED less than 0 =

A

Inferior good.

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14
Q

YED greater than 0 =

A

Normal good.

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15
Q

YED greater than 1 =

A

Luxury good.

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16
Q

What are inferior goods (YED)?

A

•A rise in income leads to a fall in demand for the good.
(YED < 0).

17
Q

What are normal goods (YED)?

A

•A rise in income leads to an increase in demand for the good (necessities).
(YED > 0).

18
Q

What are luxury goods (YED)?

A

•A type of normal good.
(YED > 1).

19
Q

What is the significance of income elasticities of demand (YED)?

A

-It is important for businesses to know how their sales will be affected by changes in income of the population.
-It may impact the type of good a business produces.

20
Q

What are cross elasticities of demand (XED)?

A

The responsiveness of demand of a product (x) to the change in price of another product (y).

21
Q

XED greater than 0 =

A

Substitutes.

22
Q

XED less than 0 =

A

Complementary goods.

23
Q

XED = 0 =

A

No correlation/unrelated goods.

24
Q

What are substitutes (XED)?

A

•An increase in price of good y will increase demand for good X.
(XED > 0).

25
Q

What are complementary goods (XED)?

A

•An increase in price of good y will decrease demand for good x.
(XED < 0).

26
Q

What are unrelated goods (XED)?

A

•No correlation.
(XED = 0).