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ECON101 Lecture Notes - Lecture 3: Normal Good, Inferior Good, Marginal Utility

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School
University of Waterloo
Department
Economics
Course
ECON101
Professor
Robert Park

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ECON101 Full Course Notes
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ECON101 Full Course Notes
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Document Summary

When we predict prices will fall, we mean that the price will fall relative to the average price of other goods. Law states that with other factors remaining the same, the higher the price of the good the smaller the quantity demanded (opposite for lower price of goods: why higher prices reduce quantity demanded, substitution effect. When prices/ relative prices/opportunity costs increase, goods are substituted by other cheaper goods: income effect prices rise relative to income (higher prices, unchanged income) people can"t afford it, buy less = decreased quantity demanded. Econ 101 demand: refers to the relationship between the price of a good and the quantity demanded of the good. As the quantity of available products increase, marginal benefit decreases, people only willing to pay a low price. A change in demand change in demand: when factors change buying plans (other than price: prices of related goods product.

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Related Questions

Question 26 pts

Which of the following is not a reason why specialization and trade are beneficial to society?

Specialization fosters learning by doing, thus lowering the unit-costs of products

Firms and workers become less dependent on others for producing goods and services

The total output of economic goods may be increased even without any increase in resources

Scarce resources are utilized more efficiently by exploiting differences among them

Question 27 pts

Laissez-faire capitalism limits the government's economic functions to the following, except:

Protecting private property rights

Establishing a legal environment to enforce contracts among individuals

Setting prices of individual goods and services

Preventing individuals and firms from coercing others

Question 28 pts

A production system where various workers concentrate on different specialized tasks to contribute towards a whole product is referred to as:

Roundabout production

A coincidence of wants

Freedom of enterprise

Division of labor

Question 29 pts

The market system is said to be characterized by "consumer sovereignty." This is because:

A sovereign government determines which consumer goods will be produced

Firms must match their production decisions to the consumers' choices

The prices of consumer goods are regulated by a sovereign government

Consumer goods are considered to be more important than capital goods

Question 30 pts

Consumers express self-interest when they:

Seek the lowest price for a product

Reduce business losses

Exclude others in their thinking

Collect economic profits

Question 311 pts




Refer to the above graph with three demand curves. An "increase in quantity demanded" would be illustrated by a change from:

Point 5 to point 1

Point 4 to point 1

Point 2 to point 5

Point 4 to point 6

Question 32 pts

The table below shows the weekly demand for hamburger in a market where there are just three buyers.



Refer to the above table. At a price of $6, the weekly market quantity demanded for hamburger is:

17

23

24

18

Question 33pts

If farmers withhold some of their current corn harvest from the market because they anticipate a higher price of corn in the near future, then this would cause a(n):

Movement up along the current supply curve of corn

Movement down along the current supply curve of corn

Leftward shift in the current supply of corn

Rightward shift in the current supply of corn

Question 34 pts

Which of the following will not cause the supply curve to shift?

A technological change in the production of the good

A change in the prices of other goods that producers could be producing

A change in the costs of resources needed to produce the good

A change in the price of the good

Question 35 pts

All of the following would affect the position of the supply curve for cranberries, except the:

Price of agricultural land for cranberries

Cost of fertilizers for cranberry production

Popularity of cranberry drinks

Development of a new pest control for cranberries

Question 36 pts

When high-school and college graduates apply for jobs in the labor markets,

Job applicants and employers are both "buyers".

Job applicants are the "sellers" while employers are the "buyers".

Job applicants and employers are both "sellers".

Job applicants are the "buyers" while employers are the "sellers".

Question 37 pts




Refer to the figure above, which shows three supply curves for corn. Which of the following would cause the supply of corn to shift from S1 to S2?

A decrease in consumer incomes, assuming corn is a normal good

The development of a more effective insecticide against corn rootworm

An increase in the price of fertilizer

A change in consumer tastes away from cornbread

Question 38 pts

Which is of the following statements is correct?

If demand increases, then price will decrease

If demand decreases, then price will decrease

If price decreases, then demand will decrease

If price increases, then demand will decrease

Question 39 pts

Which would be a likely cause of an increase in the demand for pizza?

A decrease in the price of hamburger sandwiches

A health report showing eating pizza reduces stress

A reduced desire for take-out and fast-food dining

A decrease in the prices of cheese, pepperoni, and mushrooms

Question 40 pts

A market for a product reaches equilibrium when:

Price falls further after there is a shortage

The price rises further after there is a surplus

Buyers intend to buy a quantity equal to the quantity that sellers intend to sell

The actual quantity bought by buyers equals actual quantity sold by sellers

Question 41 pts

A higher price reduces the quantity demanded for a product because:

Individuals can afford less of the product and will switch to substitutes

The financial assets of individuals increase

Individuals will buy more of the product and less of its substitutes

The purchasing power of individuals increases

Question 42 pts

The idea of the Law of Demand, as applied to electric cars, assumes which of the following to be constant?

Price of electric cars

How much sellers are charging customers for electric cars

Price of gasoline cars

Quantity of electric cars demanded by buyers

Question 43 pts

Use the following graph of the demand for coffee:



Refer to the above diagram of three demand curves for coffee. An increase in the price of coffee, other factors constant, would cause a:

Movement from point a to point b

Movement from point b to point a

Shift from D1 to D2

Shift from D1 to D3

Question 44 pts

Which of the following factors will decrease the current demand for a product?

A decrease in the current price of a complementary product

A decrease in the current price of a substitute product

An increase in the current price of a substitute product

An expected increase in the future price of the product

Question 45pts

In competitive markets, a surplus or shortage will:

Cause shifts in the demand and supply curves that tend to eliminate the surplus or shortage

Cause changes in the quantities demanded and supplied that tend to intensify the surplus or shortage

Cause changes in the quantities demanded and supplied that tend to eliminate the surplus or shortage

Never exist because the markets are always at equilibrium

Question 46 pts

Which of the following would cause a leftward shift in the supply curve for car washes?

A decrease in taxes on car washes

An increase in the price of car washing equipment

A decrease in the price of water

An increase in the number of cars in the city

Question 47pts

The market system automatically corrects a surplus condition in a competitive market by:

Raising the price of the commodity in question while decreasing the quantity demanded

Raising the price of the commodity in question while increasing the quantity demanded

Reducing the price of the commodity in question while increasing the quantity demanded

Reducing the price of the commodity in question while decreasing the quantity demanded

Question 48 pts

A leftward shift of the supply curve for oil in the United States is most likely to result from:

A decrease in the world price of oil

An increase in the costs of exploration and drilling for oil

An increase in the subsidy for oil exploration and drilling

A decrease in the fees that oil companies must pay for drilling licenses

Question 49 pts

A fall in the price of milk, used in the production of ice cream, will:

Decrease the supply of ice cream

Have no effect on the supply of ice cream

Increase the supply of ice cream

Cause a movement along the supply curve of ice cream

Question 50 pts




Refer to the above graph, which shows the market for beef where demand shifted from D1 and D2. The change in equilibrium from E1 to E2 is most likely to result from:

An increase in the cost of cattle feed

A decrease in consumer incomes

A decrease in the tax on beef products

An increase in the price of pork

17. Which of the following is a determinant of supply?

A. Tastes and preferences

B. Price of a complementary good

C. Consumer income

D. Technology

 

18. A market is in equilibrium:

A. provided there is no surplus of the product

B. at all prices above that shown by the intersection of the supply and demand curves

C. if the amount producers want to sell is equal to the amount consumers want to buy

D. whenever the demand curve is downsloping and the supply curve is upsloping.

 

19. If the market price is above the equilibrium price:

A. A shortage will occur and producers will produce more and lower prices

B. A surplus will occur and producers will produce less and lower prices

C. A surplus will result and consumers will bid prices up

D. Producers will make extremely high profits

 

20. The market system automatically corrects a surplus condition in a competitive market by:

A. Raising the price of the commodity in question while increasing the quantity demanded

B. Raising the price of the commodity in question while decreasing the quantity demanded

C. Reducing the price of the commodity in question while increasing the quantity demanded

D. Reducing the price of the commodity in question while decreasing the quantity demanded

 

21. The price elasticity of demand measures:

A. buyer responsiveness to price changes.

B. the extent to which demand curve shifts as incomes change.

C. the slope of the demand curve.

D. how far business executives can stretch their fixed costs

 

22. The elasticity of demand for a product is likely to be greater:

A. if the product is a necessity, rather than a luxury good.

B. the greater the amount of time over which buyers adjust to a price change

C. the smaller the proportion of one's income spent on the product.

D. the smaller the number of substitute products available.

 

23. Market failure is said to occur whenever:

A. private markets do not allocate resources in the most economically desirable way

B. prices rise

C. some consumers who want a good do not obtain it because the price is higher than they are willing to pay

D. government intervenes in the functioning of private markets.

 

24. A negative externality or spillover cost occurs when:

A. firms fail to achieve allocative efficiency.

B. firms fail to achieve productive efficiency.

C. the price of the good exceeds the marginal cost of producing it.

D. the total cost of producing a good exceeds the costs borne by the producer

Am I using economic concepts correctly in the following? Please correct and clarify for me if not.

In this scenario, we want to curb or decrease the use of drugs and the use of the services provided by prostitution. So, if you legalize either, and then in policy increase the prices for those goods or services, you can eliminate price-sensitive or elastic consumers, like teenagers. It does not solve the problem, but this is just an economic scenario, right? It will decrease documented use and users, but since these were black market operations, to begin with, there will always exist a black market to supply what the public markets cannot. Quality in these black markets will be poor, but prices will reflect this. Inelastic consumers, such as working adults, in the face of a price increase, will choose less expensive substitutes rather than abstain, and will even choose illegal avenues to attain before abstaining, or going without.

Another conundrum in the drug arena is the addictive vs non-addictive substances debate. Highly addictive substances like cocaine and heroin will experience less elasticity than substances such as nicotine or marijuana. Because it can be argued that addiction diminishes rational choice, increases in price that would normally cause users to refrain from use are not effective and thus do not end up lowering the quantity of drugs demanded, addiction counteracts theory and demand only decreases negligibly. Here, revenues would increase for the suppliers of such goods and services, while not even making a dent in the quantity of drugs demanded. Profits however may not increase as interdiction efforts also increase a supplier's production and distribution costs.