CCEA A Level Economics
CCEA A Level Economics AS 2 Aggregate Demand, Aggregate Supply and Macroeconomic Equilibrium Exam Questions
Free CCEA A Level Economics revision for AS 2 Aggregate Demand, Aggregate Supply and Macroeconomic Equilibrium: what you need to know, common mistakes and exam-style questions with answers. Covers components of aggregate demand, investment, short and long run aggregate supply, keynesian and classical views and AD/AS analysis.
Practise AS 2 Aggregate Demand, Aggregate Supply and Macroeconomic Equilibrium with past papers
Once you have learnt this topic, find the AS 2 Aggregate Demand, Aggregate Supply and Macroeconomic Equilibrium questions in real CCEA A Level Economics past papers and mark them with the mark scheme. Doing lots of real questions is the quickest way to learn how examiners ask about each idea.
About CCEA A Level Economics AS 2 Aggregate Demand, Aggregate Supply and Macroeconomic Equilibrium
This topic in Unit AS 2: Managing the National Economy builds the AD/AS model used to analyse the whole economy. You need the components of aggregate demand (C + I + G + X - M), why the AD curve slopes downwards, what shifts it, and the types of investment. Aggregate supply covers the short-run AS curve and the long-run AS curve, including the contrast between the Keynesian and neoclassical (classical) views of LRAS. Macroeconomic equilibrium then brings AD and AS together to analyse changes in real output, the price level, unemployment and growth. CCEA case studies regularly expect an AD/AS diagram to explain the effect of a shock or policy on the economy.
What you need to know
- Aggregate demand AD = C + I + G + (X - M), total planned spending on domestic output at each price level. Consumption is the largest component.
- Shape and shifts of AD AD slopes down because a lower price level raises real wealth, lowers interest rates and makes exports more competitive. It shifts with changes in confidence, interest rates, government spending, taxes, exchange rates and world incomes.
- Investment Spending on capital goods. Types include replacement investment, new (induced) investment and public sector investment. It depends on interest rates, business confidence, expected demand and technology.
- Short-run aggregate supply SRAS slopes upwards and shifts with changes in costs such as wages, raw materials, energy, indirect taxes and productivity.
- Long-run aggregate supply The neoclassical LRAS is vertical at full capacity output, so in the long run output is set by supply-side factors. The Keynesian LRAS is horizontal at low output with spare capacity, then curves upwards and becomes vertical at full employment.
- Macroeconomic equilibrium Where AD equals AS. Use the model to analyse the effect of shocks on real GDP, the price level and employment. The impact of a rise in AD depends on how close the economy is to full capacity.
Common mistakes in AS 2 Aggregate Demand, Aggregate Supply and Macroeconomic Equilibrium
- Labelling the axes of AD/AS diagrams as price and quantity; use price level and real output (real GDP).
- Explaining the downward slope of AD with the reasons for a downward-sloping market demand curve, such as substitutes.
- Shifting AD for a change in the price level; that is a movement along AD.
- Ignoring the Keynesian view when analysing a rise in AD in a recession with spare capacity.
- Treating a rise in costs as a shift of AD; cost changes shift SRAS.
Try three AS 2 Aggregate Demand, Aggregate Supply and Macroeconomic Equilibrium exam-style questions
1. State the four components of aggregate demand. (2 marks)
Show the mark scheme answer
Consumption; investment; government spending; net exports (exports minus imports).
2. Using an AD/AS diagram, explain the likely effect of a large rise in oil prices on the UK economy. (6 marks)
Show the mark scheme answer
Higher oil prices raise firms' costs; SRAS shifts left; price level rises (cost-push inflation); real output falls; unemployment may rise; correctly labelled diagram showing old and new equilibrium.
3. Explain why an increase in aggregate demand may have different effects depending on the shape of the long-run aggregate supply curve. (6 marks)
Show the mark scheme answer
Keynesian LRAS with spare capacity: higher AD raises real output and employment with little inflation; near full capacity: AD rise mostly raises the price level; neoclassical vertical LRAS: in the long run output returns to full capacity and only the price level rises.
AS 2 Aggregate Demand, Aggregate Supply and Macroeconomic Equilibrium FAQs
What does CCEA A Level Economics AS 2 Aggregate Demand, Aggregate Supply and Macroeconomic Equilibrium cover?
The components and shape of AD, its determinants, types of investment, SRAS and LRAS including Keynesian and neoclassical views, and AD/AS analysis of output, prices and employment.
Which unit is this topic examined in?
It is in Unit AS 2: Managing the National Economy, a 1 hour 30 minute paper with short-answer questions, a case study and an extended response question.
Which diagrams should I practise?
Shifts in AD, shifts in SRAS, an outward shift in LRAS, and both the Keynesian and neoclassical LRAS shapes. Always label the price level and real output axes.
