Micro-Economics Flashcards

Help remember micro-economic concepts and how markets are impacted by particular circumstances within the economy.

1
Q

What is the economic problem?

A

The economic problem is that consumers have unlimited wants and needs but resources are scarce.

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2
Q

What is scarcity?

A

When a recourse is ‘scarce’ it means the demand for said resource is greater than the available supply, giving it a monetary value based on said demand.

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3
Q

What is a positive statement?

A

A positive statement is a statement which can be proven by fact and is therefore objective.

For example:
“A reduction in income will increase the amount of people shopping in pound shops”

With data collected over a period this statement can be proven true or false making it a positive statement.

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4
Q

What is a normative statement?

A

A normative statement is a statement which is purely based on opinion and is therefore subjective.

For example:
“We should make the national fuel allowance more accessible for pensioners.”

It is not possible to prove this statement true or false, therefore making it a normative statement based on opinion.

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5
Q

What are the four factors of production? what do they mean? what are their rewards?

A

The four factors of production are:

Land- any land used in the production of goods and resource’s stored within said land are considered factors of production. The reward for land is rent.

Labour- any one working in the production of goods and services is considered labour. The reward for labour is a wage.

Enterprise- any risk associated with beginning a business in which an person decides to take with no guaranteed monetary gain to become an entrepreneur. The reward for enterprise is profit.

Capital- any equipment (also known as capital goods) associated with creating goods or services. The reward for capital is interest.

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6
Q

What is opportunity cost?

A

Opportunity cost is the cost of the next best forgone option and the result of choosing one alternative over another.

For example you spend time and money going to a movie and therefore cannot spend time at home reading a book and you cant spend that money on something else.

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7
Q

What is a good?

A

A good is anything which is physically tangible, such as clothing.

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8
Q

What is a service?

A

A service is anything intangible, medical check-up.

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9
Q

What are the economic agents?

A

Producers- Firms or people whom provide goods or services.

Consumers- Firms or people who buy the goods and services.

Government- The collective who set rules for which the other agents within the economy will follow, typically made to correct market failure.

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10
Q

What is an economic incentive?

A

An economic incentive is any motivation an economic agent would have to pursue a specific action.

For example an incentive for a firm to create a specific product would be in having a high demand and low supply meaning they can obtain very high profits from it.

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11
Q

What are the economics agents motivations?

A

Producers- To gain as much profit as possible.

Consumers- To gain the most utility from their purchases possible.

Governments- To maintain a stable economy and correct market failures.

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12
Q

What is market failure?

A

Market failure is a situation in which there is an inefficient allocation of resources within a market.

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13
Q

What are the causes of market failure?

A

Negative externalities- caused by the overconsumption of demerit goods.

Information failure- caused by sellers withholding information about products.

Monopolies- caused by one firm having a large amount of control over a market having a very high market share.

Inequality- caused by huge disparities in income between classes within society

Free rider problem- caused by people benefiting from resources, goods or services that they didn’t pay for which may be over provided.

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14
Q

What is a demerit good? What do they lead to?

A

A demerit good is a good with more negative externalities than positive externalities. It can lead to stresses on public services as they often cause illness. An example of a demerit good would be alcohol or cigarettes.

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15
Q

What is information failure? What does it lead to?

A

Information failure is when information is withheld by producers and not given to consumers leading to consumers receiving products they did not want, creating an inefficient allocation of resources.

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16
Q

What are monopolies? What can they lead to?

A

A monopoly is when one business occupies too much of a market giving them an advantage. In its purest form, a monopoly is when one company has 100% concentration of the market. However in the UK the CMA (competition and market authority) defines a monopoly as a company with more than 25% of an industries sales.

They can lead to unfair wages for workers within said industry and high price, low quality products for consumers as they have no other company to buy from as their is a lack of competition in the market.

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17
Q

What is inequality? What can it lead to?

A

Inequality is the unequal distribution of income and opportunities between different groups within society.
These groups include: Races, sexes and classes. Inequalities can lead to a reduction of healthcare, education, water and sanitation within society and can affect a societies overall life expectancy.

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18
Q

What is the free rider problem? What can it lead to?

A

The free rider problem is when people benefit from resources, goods or services without paying for said service. This is as these are public services which would otherwise be underprovided within society without government intervention and therefore are required to be payed for with taxes. The free rider problem can cause pressure on public services as they can be consumed by people who do not pay their taxes.

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19
Q

What is a oligopoly? What can they lead to?

A

A oligopoly is when a small number of firms all of which cannot stop each other having influence occupy the majority of a market share. Oligopolies can lead to high barriers to enter the market, price driving sales in a markets, product differentiation.

example: The automobile industry is dominated by a few large companies such as Ford and GM.

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20
Q

What is the PPF curve?

A

PPF stands for the “production possibility frontier” it is used to show at which point a country’s economy is most efficiently allocating resources to produce as many units as possible.

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21
Q

What does a PPF curve look like?

A

A PPF curve is characterised by one large sloping curve at which any point of said curve is the most efficient allocation of resources. It than has two axis both being different products. Any movement along the curve shows an opportunity cost as what you gain in one product you lose in the other.

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22
Q

What does a point inside a PPF curve mean?

A

Inefficient allocation of resources.

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23
Q

What does a point outside a PPF curve mean?

A

Not currently possible with the currently available factors of production.

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24
Q

What does a point on a PPF curve mean?

A

Efficient allocation of resources.

25
Q

What is a market?

A

A market is anywhere where goods and services are bought and sold.

26
Q

What is demand?

A

Demand is the amount of a product consumers are willing and able to buy at a given time.

27
Q

What does a demand curve look like?

A

A demand curve sloped downwards with the y axis being price and the x axis being quantity supplied. This therefore means the higher the price the lower the quantity demanded and the lower the price the higher the quantity demanded.

28
Q

When does the demand curve shift?

A

The demand curve shifts when any factor besides prices affects demand for a product.

Example of reasons for this include: change in consumer tastes or changes to consumers real income.

29
Q

What is a normal good?

A

A normal good is a good in which consumers will demand more of if their real income increases.

30
Q

What is inferior goods?

A

An inferior good is a good in which consumers will demand more of if their real income decreases.

31
Q

What are substitute goods?

A

Substitute goods are goods in which when demand for one increases the demand for the other decreases.

Remember! Xbox and PlayStation!

32
Q

What are complimentary goods?

A

Complimentary goods are goods in which when demand for one increases the demand for the other also increases meaning they are often used together.

Remember! fish and chips!

33
Q

What is derived demand?

A

Derived for demand is the demand for a good or a FOP used in making other goods or services.

For example: an increase in demand for fencing will lead to an increase in demand for wood.

34
Q

What is composite demand?

A

Composite demand is when a good has many different uses and therefore demand can be changed due to many factors.

An example of this would be oil.

35
Q

What is elasticity of demand?

A

Elasticity of demand refers to the amount quantity supplied will change when a products price changes.
It is often referred to as ‘PED’.

36
Q

What does a PED of <1 mean?

A

A PED of <1 means a goods PED is relatively inelastic meaning a change of price will not change quantity supplied much.

37
Q

What does a PED >1 mean?

A

A PED of >1 means a goods PED is relatively elastic meaning a change of price will change the quantity supplied significantly.

38
Q

What does a PED =1 mean?

A

A PED of 1 means a goods PED is perfectly elastic.

39
Q

What is real income?

A

Real income is the amount of money consumers earn after it is adjusted for inflation.

40
Q

What is income elasticity of demand?

A

Income elasticity of demand show how demand will change with income.

It is often referred to as ‘YED’.

41
Q

What is the YED equation?

A

YED= percent change in quantity demanded for a good / percent change in income

42
Q

What is cross elasticity of demand?

A

Cross elasticity of demand is a measure of how the quantity demanded of one good responds to a change in price of another good.

It is often referred to as ‘XED’.

43
Q

What is the XED equation?

A

XED= percent change in quantity demanded of good A / percentage change in price of good B

44
Q

What are the influences of PED?

A

1) The number of available substitutes

The number of available substitutes can greatly affect PED, this is as if a product becomes cheaper to buy than its substitutes it will be bought more increasing quantity sold.

2) The type of good

The type of good can greatly affect PED, this is as essential items may need to be bought no matter what and therefore be inelastic. Habit forming goods could be less elastic as people may still buy them as they are addicted. Emergency services may have inelastic demand and medicine may do too.

3) Percentage of income spend on good

The larger of a consumers income spent on a product means it is more price elastic than demand for products that only require a small amount of a consumers income. This means consumers are more likely to shop around for the best price for an expensive good.

4) Time

The longer the amount of time the more price elastic a product becomes as alternatives become easier to come by as consumers have time to shop around and producers begin to create dupes.

45
Q

What will reduction of price lead to for a firm if a good has elastic demand?

A

An increase in total revenue.

46
Q

What will increase of price lead to for a firm if a good has elastic demand?

A

A decrease in total revenue.

47
Q

What will reduction of price lead to for a firm if a good has inelastic demand?

A

A decrease in total revenue.

48
Q

What will increase of price lead to for a firm if a good has inelastic demand?

A

An increase in total revenue.

49
Q

How will demand for inferior goods be affected if consumers real income decreases?

A

Inferior goods will see an increase in demand if consumers real income decreases. This is as consumers will have less buying power and therefore will look to spend less in general resulting to buying inferior goods due to their lower prices.

50
Q

How will demand for normal goods be affected if consumers real income decreases?

A

Normal goods will see a decrease in demand if consumers real income decreases. This is as consumers will have less buying power and therefore will seek out inferior goods and they will have less money to spend. This means less consumers will be willing and able to buy normal goods.

51
Q

Will substitutes have positive or negative XEDs?

A

They will have positive XEDs as if the price of one increases, the consumption of the other will increase.

52
Q

Will complimentary goods have negative or positive XEDs?

A

They will have negative XEDs as if the price of one increases, the consumption of the other will decrease.

53
Q

What can YEDs be used for?

A

The price elasticity of demand is useful for both firms and governments.

Information about YEDs can be used in sales forecasting. When it is expected for consumers real income to fall lower sales levels can be predicted. YED can also be used in pricing policy, when there’s predicted to be a fall in customers real income firms selling normal goods may choose to lower prices to maintain revenue.

54
Q

What is supply?

A

Supply is the quantity of a good or service that producers apply to the market at a given price at a given time.

55
Q

What does a supply curve look like?

A

The supply curve slopes upwards, it shows the relationship between price and quantity supplied. As it is sloped upwards this means that the higher the price consumers are willing and able to pay the high quantity producers will create.

56
Q

When does the supply curve shift?

A

The supply curve moves when there is a change in amount supplied at every price.

57
Q

What can cause a shift in the supply curve?

A

1) Changes in costs of production

An increase in the costs of production may cause producers to chose to produce less of a product as it will increase revenue.

2)Improvements in technology

An improvement in technology can reduce the cost of production meaning more of a product can be produced.

3) Changes to the productivity of factors of production

Higher productivity means companies can get higher output with the same factors of production, this means they can produce more with what they already have meaning an increased supply of a product.

58
Q
A