Eco AOS 1 Unit 3
Microeconomics:
An economy on a small scale involving buyers and sellers in specific industries or sectors
Types of resources:
Labor:
Physical and mental efforts of people
Natural:
Derived from the earth
Capital:
Man made
Needs:
Required for survival
Wants:
Desired but not required for survival
Relative scarcity:
The idea of unlimited needs and wants but limited resources
Opportunity cost
The value forgone when choosing the next best alternative
Living standards:
Material:
Access to Goods and services
Non-material:
Quality of life factors
Resource allocation:
How scarce resources are allocated
Market capitalism:
Where decisions are made by private owners rather than the government
Market socialism:
Where decisions are made by the government and not private owners
Production possibility diagram:
Displays different output options based on allocation of resources
The PPF represents maximum efficiency
A point inside the PPF is inefficient
A point outside the PPF represents a point in the future
Allocative efficiency:
Where resources are used to produce goods and services that maximize societies living standards
Technical efficiency:
The lowest cost production methods including minimizing wastage
Dynamic efficiency:
When resources can be reallocated quickly to changing needs
Intertemporal efficiency:
Best covers current and future consumption in a balanced way
Competition on efficiency:
In a market level of competition is usually equal to level of efficiency however too much competition can result in low efficiency
Market:
A place where buyers and sellers meet to exchange goods and services
Consumer Sovereignty:
Means that consumers of goods and services, not governments, dictate how resources will be used
Homogenous:
Products are identical
System of allocation:
Best decides how to deal with relative scarcity
Three economic questions:
What to produce
How to produce it
Whom to produce it for
Perfectly competitive conditions:
Large number of sellers
No individual seller has market power making firms 'price takers'
Homogenous products
No product differentiation encouraging firms to offer lowest price possible
Ease of entry and exit
Easy for firms to enter and exit the market with low barriers and set-up costs
Perfectly competitive assumptions:
Full information
Buyers and sellers have access to all relevant information
Mobility of resources
Resources can easily be reallocated as consumer preference changes
Maximizing wellbeing
Sellers and buyers seek to maximize wellbeing
Little to no government intervention
The government plays a minor role in allocation of resources
Market structures:
Type of structure: | Pure perfect | Monopolistic competition | Oligopoly | Monopoly |
Number of sellers | A lot | Many | Few | One |
Barriers to entry | Low/none | Low/medium | High | Very high |
Competition | Very high | high | Low/medium | Low/none |
Examples | Gold, oil, coal, iron ore | Clothing brands | Supermarkets, phone brands | Metro trains, Yarra valley water |
Cost:
What the producer spends to make a product
Price:
What the consumer pays for the product in the market
Total revenue:
Price x quantity supplied
Total costs:
Cost per unit x quantity supplied
Profit:
Total revenue - total costs
Law of demand:
As the price increases, the quantity demands decreases
Reasons underpinning the law of demand:
Income effect
Due to limitations of income as the price rises fewer people can afford goods or services
Perceived utility
If the price is higher than what a consumers believes it is worth they will no longer be willing to purchase
Diminishing marginal utility
Over many purchases a product becomes less desirable leading to less willingness to purchase
Substitution effect
If a price becomes too high consumers will use a substitute product
Demand factors:
Disposable income
Total household income minus tax plus welfare
Discretionary income
Disposable income minus necessities
Price of substitutes
If substitutes become relatively cheaper demand for the original product will decrease
Price of complements
Complements are products which are sold separately but are generally used together
Changes in consumer preferences and tastes
If a product is or isn't "in fashion" will influence demand
Population change
The more people in an economy the more demand
Demographic change
Different demographic have different demands
Consumer confidence
Household's level of optimism or pessimism about future employment and income
Business confidence
Business' level of optimism or pessimism about future profits
Changes in the seasons
Certain products are more or less appealing in different seasons
Changes in government policy and regulations
The government can affect the demand for goods and services through subsidies, taxes or endorsement
Changes in interest rates on borrowed money
Businesses and consumers may need to borrow money for expenses and must pay interest on that money to finance their spending. Generally higher interest rates will lower demand price for houses, cars and holidays
Law of supply:
As the price increases the quantity supplied increases
Reasons underpinning law of supply:
Profit motive
The drive of businesses to make as much money as possible
Supply Factors:
Cost of production
The higher a firms costs the lower their profits
Productivity growth
If more efficient methods of production are used output increases
Climatic conditions
Different climates can alter the production process
Government restrictions
Changes to taxes, regulations, subsidies and other interventions
Equilibrium:
Where quantity demanded equals quantity supplied
Market price mechanism:
The operation of the market system which involves a negotiated equilibrium by buyers and sellers, relative prices then change overtime due to non-price supply and demand factors, resulting in profit maximising firms overlooking resource allocation
Relative price:
The comparison of value between two products
Effects
Can lead to change in resource allocation if goods become more/less profitable
Leads to allocative and technical efficiency resulting in an increase in MLS
Can lead to a decrease in NMLS due to profit motive
Market failure:
When the operation of a market results inefficient allocation of resources and does not maximize satisfaction of societies needs and wants
Types of market failure:
Positive externalities:
Positive consequences of production or consumption to a third party
Negative externalities:
Negative consequences of production or consumption to a third party
Public goods:
Goods or services that provide positive externalities and are non-rivalrous and non-excludable
Asymmetric information:
When either the buyer or seller has more market knowledge about the good or service being bought/sold than the other
Common access resources:
Resources related to sustainability, meaning future generation will not be able to consume them if we over consume today
They are rivalrous, non-excludable and can lead to inter-temporal inefficiency
Government intervention:
Government failure refers to when government intervention in the market, which is intended to improve market outcomes, unintentionally makes resource allocation less efficient
Laws/legislation:
May promote competition, force a change in behavior or discourage actions
Education/information advertising
Improving knowledge and awareness for consumers/businesses
Price controls:
Rules about prices in the market imposed by the government, either through a price floor or a price ceiling
Price ceiling:
The government sets a max price in the market below the market equilibrium
Intended to make a product more accessible but fewer people have less access because of the already low supply
Black markets may arise
Price floor:
The government sets a minimum price in the market above the market equilibrium
Intended to increase incomes and living standards for workers but few workers are getting a wage due to low demand
Unemployment may arise
Subsidies:
Government pays sellers reducing costs of production and increases supply
Government pays buyers reducing opportunity cost and increasing demand
Protectionism:
The government 'protects' local industries by increasing costs of production for foreign firms selling in Australia
Price elasticity of demand (PED):
Refers to how responsive quantity demand is to a change in price
Elasticity of demand factors:
Degree of necessity
If a product is essential people will maintain consumption even if prices rise
Proportion of income
Products with higher prices make up a larger proportion of incomes, hence consumers see price changes in these products as more important
Availability of substitutes
If a product has many substitutes consumers are more likely to purchase them if price increases
Minor complements
The demand for cheap complements to relatively more expensive products is generally inelastic
Time period
In short term demand is less elastic as consumers go about their shopping in a usual way. In the long term demand is more elastic as consumers have time to seek out relatively cheaper substitutes
Elasticity of supply factors:
Storability and durability
A good that stores well can be saved for another time or suppliers can supply stored goods depending on market price making it elastic
Production period
If a product takes a long time to produce business' cannot quickly raise/lower prices if there is a change
Spare industry capacity
If there is spare capacity in a business, supply can easily respond to a change in price
Time period
Over time businesses can use new methods and resources to better adapt in changes in price