ECS2602
NOTES
,Learning Unit 1: An Overview of the South African Macroeconomic Environment
Economic Growth
Economic growth refers to an increase in the overall production of goods and services
within an economy. It is generally measured as the yearly percentage change in total
output or national income. However, this concept needs to be clarified in two ways:
1. The measurement should reflect real output or income, meaning that the impact
of inflation must be excluded.
2. The data should also take into account changes in population size. This is done
by presenting the figures on a per capita basis, ensuring that growth reflects
improvements in living standards rather than just a growing population.
Real GDP Growth Rate
The real GDP growth rate is calculated by comparing the value of gross domestic
product (GDP) in one year (t) with the previous year (t–1).
GDP represents the total market value of all final goods and services produced within
a country’s borders over a specific period, usually a year. Final goods and services are
those consumed by households and firms, not intermediate products. GDP is the most
widely recognized and used indicator of economic activity, as it measures how much
output has been produced in a country or region.
,Nominal GDP (Current Prices)
Nominal GDP is calculated by multiplying the quantities of goods and services
produced by their current market prices.
Growth in nominal GDP can occur for two reasons:
1. A rise in the quantity of goods and services produced.
2. An increase in the prices of goods and services (inflation).
Real GDP (Constant Prices)
Real GDP values goods and services using the prices of a base year, rather
than current prices.
This adjustment removes the effect of inflation and reflects the actual physical
volume of production.
The use of a base year ensures that changes in GDP measure real growth in
output rather than just changes in price levels.
Real GDP per Capita
Economic growth is only meaningful if real GDP grows faster than the
population.
If the population grows at a higher rate than real GDP, then real GDP per capita
falls, leading to a decline in average living standards.
Inflation
Inflation is defined as a sustained increase in the overall price level of goods
and services.
, In short-run models (goods market, financial market, IS-LM model), the price
level is often assumed to be constant.
In the labour market, inflation is linked to how workers’ wage demands respond
to price changes.
The AS-AD model shows how expectations of future prices can influence the
actual price level in the economy.
Fiscal Policy
Fiscal policy refers to government decisions about spending, taxation, and
borrowing, aimed at achieving specific economic objectives.
The budget is the main tool of fiscal policy.
Key approaches:
o Expansionary fiscal policy: Government increases spending and/or
reduces taxes to stimulate demand. This usually leads to a higher budget
deficit.
o Contractionary fiscal policy: Government reduces spending and/or
increases taxes to limit demand. This generally lowers the budget deficit.
Monetary Policy
Monetary policy involves deliberate actions by monetary authorities (such as the
central bank) to influence money supply, interest rates, credit availability,
and exchange rates.
Its aim is to affect demand, output, income, prices, and the balance of payments.
Types:
o Expansionary monetary policy: Increases the money supply, lowers
interest rates, and encourages higher demand for goods and services.
NOTES
,Learning Unit 1: An Overview of the South African Macroeconomic Environment
Economic Growth
Economic growth refers to an increase in the overall production of goods and services
within an economy. It is generally measured as the yearly percentage change in total
output or national income. However, this concept needs to be clarified in two ways:
1. The measurement should reflect real output or income, meaning that the impact
of inflation must be excluded.
2. The data should also take into account changes in population size. This is done
by presenting the figures on a per capita basis, ensuring that growth reflects
improvements in living standards rather than just a growing population.
Real GDP Growth Rate
The real GDP growth rate is calculated by comparing the value of gross domestic
product (GDP) in one year (t) with the previous year (t–1).
GDP represents the total market value of all final goods and services produced within
a country’s borders over a specific period, usually a year. Final goods and services are
those consumed by households and firms, not intermediate products. GDP is the most
widely recognized and used indicator of economic activity, as it measures how much
output has been produced in a country or region.
,Nominal GDP (Current Prices)
Nominal GDP is calculated by multiplying the quantities of goods and services
produced by their current market prices.
Growth in nominal GDP can occur for two reasons:
1. A rise in the quantity of goods and services produced.
2. An increase in the prices of goods and services (inflation).
Real GDP (Constant Prices)
Real GDP values goods and services using the prices of a base year, rather
than current prices.
This adjustment removes the effect of inflation and reflects the actual physical
volume of production.
The use of a base year ensures that changes in GDP measure real growth in
output rather than just changes in price levels.
Real GDP per Capita
Economic growth is only meaningful if real GDP grows faster than the
population.
If the population grows at a higher rate than real GDP, then real GDP per capita
falls, leading to a decline in average living standards.
Inflation
Inflation is defined as a sustained increase in the overall price level of goods
and services.
, In short-run models (goods market, financial market, IS-LM model), the price
level is often assumed to be constant.
In the labour market, inflation is linked to how workers’ wage demands respond
to price changes.
The AS-AD model shows how expectations of future prices can influence the
actual price level in the economy.
Fiscal Policy
Fiscal policy refers to government decisions about spending, taxation, and
borrowing, aimed at achieving specific economic objectives.
The budget is the main tool of fiscal policy.
Key approaches:
o Expansionary fiscal policy: Government increases spending and/or
reduces taxes to stimulate demand. This usually leads to a higher budget
deficit.
o Contractionary fiscal policy: Government reduces spending and/or
increases taxes to limit demand. This generally lowers the budget deficit.
Monetary Policy
Monetary policy involves deliberate actions by monetary authorities (such as the
central bank) to influence money supply, interest rates, credit availability,
and exchange rates.
Its aim is to affect demand, output, income, prices, and the balance of payments.
Types:
o Expansionary monetary policy: Increases the money supply, lowers
interest rates, and encourages higher demand for goods and services.
