
6: THE MACRO-ECONOMIC ENVIRONMENT
6.5
3 Monetary policy
3.1 Monetary policy uses money supply, interest rates, exchange rates and credit control to
influence aggregate demand.
3.2 Instruments of monetary policy include:
• Changing interest rates through open market operations
• Changing reserve requirements
• Intervention to influence the exchange rate
3.3 Monetary control can reduce inflation which helps:
• Prevent economic uncertainty through high inflation
• Ensure business confidence and so stimulate investment
• Controlled money supply growth should provide higher incomes
4 National income and economic growth – key
terminology
4.1 Equilibrium national income
• Demand for goods and services is in balance with available supply and the level of
output is produced fully utilising resources.
4.2 Inflationary gap
• Occurs when resources are already employed so that an increase in demand will
serve to increase prices.
4.3 A 'deflationary gap' occurs where there is unemployment of resources. Prices are fairly
constant and real output changes as aggregate demand changes.
4.4 'Stagflation' occurs where there is a combination of high unemployment and high inflation
caused by a price shock (eg crude oil price rises in the early 1970's).
5 Phases in the business cycle
5.1 The business cycle is the continual sequence of rapid growth in national income followed by
a slowdown.
5.2 After slowdown or recession comes growth again and so on.