- Grade: HSC
- Subject: Economics
- Resource type: Notes
- Written by: N/A
- Year uploaded: 2021
- Page length: 15
- Subject: Economics
Resource Description
CHAPTER 7
SUMMARY: ECONOMIC GROWTH
- Economic growth: the increase in a country’s productive capacity measured by changes in real GDP over time
- Outward movement in PPC curve à aggregate supply increased
- Target of 3-4% real GDP growth annually
AGGREGATE DEMAND AND ITS COMPONENTS: Y = C + I + G + X – M - Aggregate demand: Y = C + I + G + X – M
- Consumption: 60% of total spending à largest influence on economic activity
§ Factors affecting level of consumption: - Consumer expectations
- Cost and availability of credit
- Government policy e.g. taxes
- Income levels
- Tastes and preferences
- MPS + MPC
- Distribution of income
- Investment: 20% of total spending à expenditure on new capital equipment for production
§ Factors affecting level of investment: - Past profits
- Interest rates (cost of I)
- Government policy (tax concessions, invest. allowances)
- Price + productivity of labour (capital vs. labour)
- Technological change
- Business expectations
- Government expenditure: 21% of total spending
§ Gov. expenditure is highly stable à funds are allocated to major spending areas e.g. health, defence, education - Net exports (X – M): -1% of total spending à M > X = BOGs deficit
§ Exports most affected by world income + EG
§ Imports most affected by domestic income à domestic EG # = D for M #
§ Other factors: exchange rates, tariffs, quotas, international competitiveness - Increased aggregate D will # EG in short-run à when the economy reaches full capacity #demand = inflation
- To achieve EG in long run, a nation needs to increase its productive capacity (i.e. aggregate supply – PPC
outwards)
THE SIMPLE MULTIPLIER: k = 1 / (1-MPC)
- How changes in the level of aggregate demand influence the equilibrium level of national income
• Multiplier process: the greater than proportional increase in national income from an increase in AD - When there is a shock to the economy there is a change to leakages and injections
§ Each time the injection moves around it gets smaller because some of Y is saved à Y = C + S - How to determine the level of national Y generated by an increase in investment:
§ K = 1 OR 1 à MPC + MPS = 1
MPS 1 – MPC - Example: if consumers spend 80c of every extra $1 and save 20c then MPC = 0.8 and MPS = 0.2
If there is an increase in investment by $10 000:
Spent = 0.8 x $10 000 = $8000 Saved = $2000
That $8000 is then re-injected into the economy
Spent: 8000 x 0.8 = $6400 Saved: 2000 x 0.2 = $1600 etc… The multiplier is 5
MEASUREMENT OF GROWTH THROUGH CHANGES IN REAL GROSS DOMESTIC PRODUCT
- EG measured by comparing real GDP in different time periods
- Gross Domestic Product (GPD): total value of all final G+S produced or consumed in an economy over time
- Inflation must be taken into account to avoid distortion § Real GDP (yr 2) = Nominal GDP (yr 2) x CPI (yr 1) à adjusted for inflation
CPI (yr 2)
- Limitations of GDP as a measure of economic growth and welfare:
§ Benefits may be unevenly distributed
§ GDP doesn’t record many economic transactions e.g. voluntary work, cash transactions
§ GDP doesn’t consider externalities
§ GDP doesn’t consider the quality of goods - doesn’t provide an accurate measure of welfare
SOURCES AND EFFECTS OF ECONOMIC GROWTH IN AUSTRALIA
- Supply factors:
- Without additional demand, improving the supply function will not lead to EG § Ability to sustain EG is b/c improvements in quality and quantity of FOP § Supply side sources of growth:
- Land: exploration, use of fertilisers, irrigation
- Labour: adult education, migration
- Capital: foreign investment, new technology
- Enterprise: management training, enterprise initiatives
ECONOMICS
- Demand factors:
- Increases in demand are a pre-requisite for EG § Increasingly important elements of extra demand come from globalisation
- Allocated factors:
Technical efficiency: an efficient economy produces more G+S with a given quantity of resources than an inefficient one
- Allocated efficiency: minimising opportunity cost
- Effects of economic growth:
- Living standards: POSITIVE
§ Income + consumption increased à improved living standards
§ Higher levels of savings à reduces savings-investment gap = reduced debt
§ E.g. Aus experienced 2.3% annual growth in per capital real income in 2000s, compared with 2% in 1990s - Employment: POSITIVE
§ Consumption = demand for labour increases (derived) à unemployment decreases - Government revenue: POSITIVE
§ Increased revenue (tax, GST) = increased infrastructure spending + welfare – multiplier effect - Inflation: NEGATIVE
§ If economy is close to full employment of resources, increases in demand = demand pull inflation
§ May lead to an increase in imports
§ Gov. aim to keep within 2-3% so it doesn’t push CAD higher - External stability: NEGATIVE
§ Strong EG = # demand for M à worsens BOGs + CAD - Income distribution: NEGATIVE
§ Increases gap between rich and poor
§ Returns on physical and financial assets (e.g. art + shares) à capital gains benefit higher income earners - Environmental impacts: NEGATIVE
§ EG obtained by increases in S can lead to the depletion of resources
§ Negative externalities e.g. pollution, deforestation = damage environment - EG = increased profits = investment in R+D = productivity growth
- CASE STUDY: Population growth
- Concerns about adverse impacts of rising population on infrastructure + environment
- Skilled migration program à valuable to Australia’s labour supply
- CASE STUDY: Impact of mining and resources boom
Dutch Disease: caused by structural re-adjustment as workers and resources are snapped up by mining sector = skills shortage + excessive wage demands in other sectors § NB: High AUD affects the competitive position of non-mining exports
INCREASES IN AGGREGATE SUPPLY – IMPROVEMENTS INEFFICIENCY AND TECHNOLOGY
- Increases in quality + quantity of natural resources
- Quantity of land is fixed à exploration for new resources, converting non-useable land to productive land
- Improve quality of natural resources = productivity of current ones
- Increases in quality + quantity of human resources
- Quantity of labour improved by: increasing working age pop. + PR + birth rate, immigration
- Quality of human resources improved by: increased education + training, improved health facilities
- Increases in supply of capital
- Increased domestic savings, positive investment climate, export promotion schemes, tax benefits, growing
domestic + global market, low inflationary expectations and IR - Increases in technology à Increased research and development (R+D)
TRENDS IN BUSINESS CYCLE:
- Since 1991 Australia has experienced over 2 decades of continuous growth averaging 3.3% per annum
- 2008-09: GFC = EG fell to 1.4% à China’s increased demand for Aus X provided a buffer
- 2009-10: GRB = EG rose to 3% à stimulus package of $42 billion to stimulate economy post-GFC
- 2010-11: EG was 1.9% à slower growth in China impacted X
- 2011-12: EG was 3.4% à GRB = strong investment in mining and increased commodity X à BUT growth in other sectors below average, high AUD reduced competitiveness of X à RBA cut IR
- 2013-14: 2.7%
- 2015: 3% EG
• Sustained improvement in Australia’s TOT: Lifted domestic incomes and EG - Sep 2011: highest in 140 years at 118.5
• Productivity growth: - The 1990s: record levels à labour productivity increased by 2.6% p.a. (micro) à competition + new tech
- 2011à: 2.1%
- 2001-14: averaged 1% à capacity constraints e.g. shortage of skilled labour, and need for investment in infrastructure
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