Microeconomics definitions Flashcards

1
Q

efficiency

A

making the best possible use of scarce resources to avoid resource waste

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2
Q

allocative efficiency

A

an allocation of resources that results in producing the combination and quantity of goods and services most preferred by customers

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3
Q

rationing

A

a method used to apportion something between its interested users

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4
Q

Market

A

any kind of arrangement where buyers and sellers of goods, services or resources are linked together to carry out an exchange

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5
Q

Competition

A

a process in which rivals compete in order to obtain some objective

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6
Q

Demand

A

the various quantities of a good or service the consumer is willing and able to buy at different possible prices during a particular time period, ceteris paribus (about behaviour of buyers of goods/services/resources)

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7
Q

Law of Demand

A

there is a negative relationship between the prices of a good and its quantity demanded over a particular time period, ceteris paribus

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8
Q

Non-price determinants of demand

A
  • Income (higher income increases demand for normal goods, decreases demand for inferior goods)
  • Tastes and preferences (can change in favour or against the product, causing increase/decrease)
  • Price of related goods- movements along other goods’ demand curves (increased price of substitutes increase demand of Good A, increased price of complements decreases demand of Good A)
  • Number of consumers (as market demand is sum of individuals, more consumers increases demand)
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9
Q

Supply

A

the various quantities of a good or service a firm is willing and able to product/supply to the market at different possible prices during a particular time period, ceteris paribus

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10
Q

Law of Supply

A

there is a positive relationship between the price of a good and its quantity demanded over a particular time period, ceteris paribus

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11
Q

Non-price determinants of supply

A
  • Costs of factors of production: factor prices- higher costs decrease supply
  • Technology: new improved technology lowers costs of production, increasing supply
  • Price of related goods: competitive supply (alternatives): increased price of competing good decreases supply; joint supply (derived from same product): increased price of joint good increases supply
  • Producer price expectations: if expect price to rise, supply decreases
  • Taxes: (indirect or on profits): treated as if costs of production, increased tax causes decreased supply
  • Subsidies (payment to the firm by the government): like fall in costs of production, increase supply
  • Number of firms: an increase in the number of firms supplying increases supply
  • Shocks (sudden unpredictable events, eg weather, war, catastrophes): affect supply, normally decrease
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12
Q

Competitive market equilibrium

A

the point where quantity demanded equals quantity supplied (demand an supply curve intersect), and there is no tendency for the price to change.

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13
Q

Consumer surplus

A

the difference between the highest price consumers are willing to pay and price paid

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14
Q

Producer surplus

A

the difference between the lowest price sellers are willing to sell a good and price sold

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15
Q

Price elasticity of demand

A

measure of the responsiveness of the quantity of a good demanded to changes in price

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16
Q

Determinants of PED

A
  • Number and closeness of substitutes: more and closer substitutes, more elastic (more responsive)
  • Necessities vs luxuries: necessities (eg food) are less elastic than luxuries
  • Length of time: the longer the consumer has to make a decision, the more elastic the demand
  • Proportion of income spent on a good: higher proportion of income needed to buy a good, more elastic
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17
Q

Total revenue

A

the amount of money received by firms when they sell a good, equal to price × quantity.

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18
Q

price elasticity of supply

A

measure of the responsiveness of the quantity of a good supplied to changes in price

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19
Q

Determinants of PES

A
  • Length of time: the longer the supplier has to adjust inputs, the more elastic the supply
  • Mobility of factors of production: if easily shifted between production lines, more elastic
  • Spare capacity of firms: higher unused capacity, more elastic
  • Ability to store stocks: larger capacity to store, more elastic
  • Rate at which costs increase: if increase slowly, more elastic
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20
Q

Income elasticity of demand (YED)

A

a measure of the responsiveness of demand to changes in income

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21
Q

Reasons for market intervention

A
  • Raise tax revenue (esp taxing inelastic goods)
  • Provide support to firms (financial aid to small firms, encourage growth, protect from foreign competitor)
  • Provide support to households (helping those without enough income meet basic needs)
  • Influence level of production/consumption
  • Promote equity/equality (redistribution of income)
  • Correct market failure (help achieve allocative efficiency)
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22
Q

Methods of market intervention

A
  • Price controls (floors and ceilings)
  • Indirect taxes
  • Subsidies
  • Direct provision
  • Command/control methods/legislation
  • Consumer nudges
  • Other methods- tariffs, quotas, transfer payments
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23
Q

Price ceiling

A

a maximum price set below equilibrium by the government to prevent the price of a good or service rising above a fixed level, in order to make the good more affordable to people on low incomes, eg rent and food

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24
Q

Welfare loss

A

represents social surplus or welfare benefits that are lost to society because resources are not allocated efficiently

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25
Q

Price floor

A

a minimum price set above equilibrium by the government to prevent the price of a good or service falling below a fixed level, in order to provide income support for farmers or increase wages of low-skilled workers

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26
Q

Tax

A

a compulsory payment to the government for which no direct benefit is received in return

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27
Q

Tax base

A

the item on which a tax is levied

28
Q

Indirect tax

A

taxes levied on spending to buy goods and services, paid to government authorities by suppliers

29
Q

Excise tax

A

imposed on particular goods and services, such as petrol, cigarettes and alcohol (as opposed to taxes on spending on all goods and services such as GST)

30
Q

Direct tax

A

taxes paid directly to government tax authorities by the taxpayer, including personal income taxes, corporate taxes and wealth taxes

31
Q

Specific tax

A

a tax imposed as a fixed value per unit of a good (eg $10 000 per luxury car)

32
Q

Ad valorem tax

A

a tax imposed as a percentage of the price of a good

33
Q

Reasons for imposing taxes

A
  • Increase government revenue (especially for inelastic goods)
  • Discourage consumption of demerit goods (eg cigarettes)
  • Redistribute income (eg luxury cars)
  • Improve allocation of resources by correcting negative externalities (in cases of market failure)
34
Q

Methods of non-price rationing (to address shortage of price ceiling)

A
  • Waiting lists/queues on first-come first-serve basis
  • Coupons to purchase a fixed amount
  • Preferential customer selection
  • Other methods such as regulations develop (government prioritises certain groups) and lottery schemes
  • Parallel/underground markets
35
Q

Subsidy

A

an amount of money paid by the government to firms, resulting in a higher level of output and lower price for consumers.

36
Q

Reasons for subsidies

A
  • Increase revenues (and hence producer incomes)
  • Make goods affordable to low-income consumers
  • Encourage production/consumption of desirable goods and services
  • Support growth of particular industries
  • Encourage exports of particular goods
  • Improve the allocation of resources by reducing inefficiencies (correcting positive externalities)
37
Q

Direct provision

A

method of provision wherein the government pays for the entire production (and potentially distribution) of the good or service, providing the good at a free or heavily subsidised price

38
Q

Legislation

A

direct rules or laws government an activity or industry that state what is permitted and what is illegal

39
Q

Consumer nudges

A

aspect of choice architecture to alter people’s behaviour without physically limiting freedoms, using small prompts to alter social and economic behaviour (ie demand). For instance, placing unhealthy foods less visibly, plain packaging, bicycle lanes

40
Q

Externality

A

occurs when the actions of consumers or producers give rise to positive or negative side-effects on other people who are not part of these actions, and whose interests are not taken into consideration

41
Q

Market failure

A

where the free market forces of demand and supply lead to an allocation of resources that does not maximise the welfare of a country’s citizens, creating a misallocation of resources (not at socially optimal level)

42
Q

Negative production externalities

A

production externality: external costs for third parties caused by production activities, leading to a situation where marginal social costs are greater than marginal private costs

43
Q

Negative consumption externalities

A

external costs for third parties caused by consumption activities, leading to a situation where marginal social costs are greater than marginal private costs

44
Q

Demerit goods

A

goods that are considered undesirable for consumers and overprovided by the market. Demerit goods are often overallocated due to negative externalities associated with them (as well as ignorance of harm)

45
Q

positive production externality

A

external benefits for third parties caused by production activities, leading to a situation where marginal social costs are greater than marginal private costs

46
Q

positive consumption externality

A

external benefits for third parties caused by consumption activities, leading to a situation where marginal social costs are greater than marginal private costs

47
Q

merit goods

A

goods that are considered desirable for consumers, but are underprovided by the market. Demerit goods are often underallocated due to positive externalities, low incomes/poverty and consumer ignorance

48
Q

Methods to correct market failure

A
  • Taxes/subsidies
  • Tradeable permits
  • Legislation and regulation
  • Collective self-governance
  • Education
  • International agreements
49
Q

Excludable

A

goods wherein people (eg non-payers) can be kept from consuming the good

50
Q

Rivalrous

A

goods wherein consumption by one person reduces the availability for another

51
Q

private goods

A

goods that are both rivalrous and excludable

52
Q

public goods

A

goods that are neither rivalrous nor excludable (eg lighthouse, streetlights, defence)

53
Q

common pool resources

A

goods that are rivalrous but not excludable (fishing, deforestation)

54
Q

Tragedy of the commons

A

a story about cattle grazing on commonly-owned land, illustrating the rivalry and non-excludability of common pool resources as the land becomes overused and degraded

55
Q

Free rider problem

A

those who do not pay cannot be denied the good, so no one will pay, disincentivising producers such that the goods are underproduced

56
Q

Sustainable resource use

A

the use of resources in ways that do not result in fewer or lower-quality resources for future generations

57
Q

Renewable resource

A

resources that can last indefinitely if managed properly

58
Q

Quasi-public goods

A

goods that are non-rivalrous but excludable, such as museum tickets or toll roads

59
Q

Non-renewable resource

A

resources that do not last indefinitely since they have a finite supply

60
Q

carbon tax

A

a tax per unit of carbon emissions of fossil fuels (proportional to pollution of fuel type), designed to correct the negative production externalities that threaten climate change

61
Q

Tradeable permits (cap and trade schemes)

A

a policy involving permits to pollute issued to firms by a government or international body. Similar to carbon taxes, they provide incentives for producers to switch to less polluting resources.

62
Q

Collective self-governance

A

a solution to use of common pool resources where users take control of resources and use them in a sustainable way (counter to Tragedy of the Commons)

63
Q

Solutions to negative externalities of production

A
Indirect taxes
Carbon taxes
Tradeable permits
Government legislation
Education
International agreements
64
Q

Solutions to negative externalities of consumption

A

Taxes
Government legislation
Education
Nudges

65
Q

Solutions of overuse of common pool resources

A

Taxes
Tradeable permits
Government regulation
Collective self-governance

66
Q

Solutions to positive externalities of production

A

Subsidies

Direct provision

67
Q

Solutions to positive externalities of consumption

A
Legislation
Education
Nudges
Subsidies
Direct provision