PPSC Economics Topic 6 Economics Models

Question # 1

If price is initially above the equilibrium level.

the supply curve will shift rightward A
The supply curve will shift letward B
Excess supply exists C
All firms can sell as much as they want D

Question # 2

If the price of orange juice rises 10% and as a result the quantity demanded falls by 8% the price elastic of demand for orange juice is.

-1.25 A
Inelastic B
Both a and b C
Neither A nor B above D

Question # 3

For a given positively sloped supply curve the price increase to consumers resulting from a specific tax imposed on sellers will be.

Greater the more price elastic demand is A
Greater the less price elastic demand is B
Equal to the entire tax when demand is perfectly elastic C
Equal to half of the tax whenever demand is unit elastic D

Question # 4

Holding all other factors constant consumers demand more of a good the

Higher its price A
Lower its price B
Steeper the downward slope of the demand curve C
Steeper the upward slope of the demand curve D

Question # 5

The purpose of making assumptions in economic model building is to.

Force the model to yield the correct answer A
Minimize the amount of work an economist must do B
simplify the model while keeping important details. C
Express the relationship mathematically. D

Question # 6

If government regulations prohibit the production of a particular good the demand curve for that good will most likely.

Shift leftward A
Shift rightward B
Remain unchanged C
Disappear D

Question # 7

Consumers and firms are known as price takers only it

No market exists to determine the equilibrium price A
they can set the market price B
They cannot effect the market price C
Excess demand exists D

Question # 8

Suppose the demand curve for a good shifts rightward, causing the equilibrium price to increase this increase in the price of the good results in.

A rightward shift of the supply curve A
An increase in quantity supplied B
A leftward shift of the supply curve C
A leftward movement along the supply curve D

Question # 9

Most Microeconomic models assume that decision makers wish to.

Make themselves as well off as possible A
Act selfishly B
Not cooperate with others C
None of the above D

Question # 10

A vertical demand curve results in.

No change in quantity when the supply curve shifts. A
No change in price when the supply curve shifts B
No change in the supply curve being possible C
No change in quantity when the demand curve shifts. D

Question # 11

Equilibrium is defined as a situation in which.

Neither buyers nor sellers want to change their behavior A
No government regulations exist B
Demand curves are perfectly horizontal C
suppliers will supply and amount that buyers wish to buy D

Question # 12

The percentage change in the quantity demanded in response to a percentage change in the price is known as the.

slope of the demand curve A
Excess demand B
Price elasticity of demand C
All of the above D

Question # 13

To determine the total demand for all consumers sum the quantity each consumer demands.

At a given price A
At all prices and then sum this amount across all consumers B
Both a and b will generate the same total demand C
None of the above D

Question # 14

Which of the following is an example of a normative statement.

Since this good is bad for you, you should not consume it. A
this good is bad for you B
If you consume this good you will get sick C
People usually get sick after consuming this good D

Question # 15

It is appropriate to use the supply and demand model if in a market.

Everyone is a price taker with full information about the price and quantity of the good. A
Firms sell identical products B
Costs of trading are low C
All of the above D

Question # 16

A Horizontal demand curve for a good could arise because consumers.

Are irrational A
Are not sensitive to price changes B
View this good as identical to another good C
Have no equivalent substitutes for this good D

Question # 17

The expression increase in quantity supplied is illustrated graphically as a.

Leftward shift in the supply curve A
Rightward shift in the supply curve B
Movement up long the supply curve C
Movement down along the supply curve D

Question # 18

When two goods are substitutes a shock that raises the price of one good causes the price of the other goods to.

Remain unchanged A
Decrease B
Increase C
Change in an unpredictable manner D

Question # 19

If a government imposed price celling causes the observed price in a market to be below the equilibrium price.

There will be excess demand A
There will be excess supply B
The curves will shift to make a new equilibrium at the regulated price C
None of the above D

Question # 20

A competitive equilibrium is described by

A price only A
A quantity only B
The excess supply minus the exceess demand. C
A price and a quantity D

Sr.#	Question	Answer
1	A vertical demand curve for a particular good implies that consumers are.	A. Sensitive to changes in the price of that good B. Not sensitive to changes in the price of that good. C. Irrational D. Not interested in that good
2	If the price of orange juice rises 10% and as a result the quantity demanded falls by 8% the price elastic of demand for orange juice is.	A. -1.25 B. Inelastic C. Both a and b D. Neither A nor B above
3	If the price of automobile were to decrease substantially the demand curve for automobiles would most likely.	A. shift rightward B. Shift left eard C. Remain unchanged D. Become steeper
4	As the price of a good increases, the change in the quantity demanded can be shown by	A. Shifting the demand curve leftward B. Shifting the demand curve rightward C. Moving down along the same demand curve D. Moving up long the same demand curve
5	When two goods are substitutes a shock that raises the price of one good causes the price of the other goods to.	A. Remain unchanged B. Decrease C. Increase D. Change in an unpredictable manner
6	The expression increase in quantity supplied is illustrated graphically as a.	A. Leftward shift in the supply curve B. Rightward shift in the supply curve C. Movement up long the supply curve D. Movement down along the supply curve
7	A Horizontal demand curve for a good could arise because consumers.	A. Are irrational B. Are not sensitive to price changes C. View this good as identical to another good D. Have no equivalent substitutes for this good
8	Economists tend to judge a model based upon	A. the realty of its assumptions B. The accuracy of its predications C. Its simplicity D. Its complexity
9	To determine the total demand for all consumers sum the quantity each consumer demands.	A. At a given price B. At all prices and then sum this amount across all consumers C. Both a and b will generate the same total demand D. None of the above
10	The percentage change in the quantity demanded in response to a percentage change in the price is known as the.	A. slope of the demand curve B. Excess demand C. Price elasticity of demand D. All of the above

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