HookThe month the dashboard broke
In October 2022, UK consumer price inflation hit 11.1% — the highest in 41 years — while the unemployment rate sat at around 3.7%, close to its lowest since the mid-1970s. On paper the labour market had never looked healthier; in practice real wages were falling at the fastest rate on record, and the Bank of England was lifting interest rates into the teeth of a cost-of-living crisis. Both things were true at once, and that contradiction is the whole puzzle of macroeconomic performance.
A government judges the economy on a small dashboard: how fast output is growing, how many people are in work, how quickly prices are rising, and whether trade balances. This section teaches you to read that dashboard — and, more importantly, to see why the dials fight each other. The Bank could not cool inflation without risking jobs and growth; it could not protect jobs without letting inflation run. Almost every macro essay you write about 2.3 is, underneath, about that tension.
ModelEconomic growth and the economic cycle
Economic growth is the rate of change of real GDP — output measured at constant prices, so a rise reflects more goods and services, not just higher price tags. AQA wants three distinctions kept crisp. First, real versus nominal: nominal GDP is unadjusted for inflation, real GDP strips it out. Second, actual versus potential growth: actual growth is the change in real output this year, potential growth is the change in the economy's productive capacity — a rightward shift of LRAS. Third, total versus per capita: GDP per head divides output by population and is the better guide to living standards, because an economy can grow 2% while GDP per head stagnates if the population also grows 2%.
The economic cycle is the fluctuation of actual output around that potential trend: boom, downturn, recession — conventionally two consecutive quarters of falling real GDP — and recovery. The distance between actual and potential output is the output gap: positive and inflationary in a boom, negative and disinflationary in a slump. Britain has lived both extremes. Output fell roughly 6% peak-to-trough in the 2008–09 recession, then around 11% across 2020 in the deepest annual contraction in about three centuries, before a shallow technical recession returned in the second half of 2023.
Suppose UK nominal GDP rises from £2,200bn to £2,310bn in a year — a 5% increase. Over the same year the GDP deflator (economy-wide inflation) runs at 3.5%. Real growth is approximately 5% − 3.5% = 1.5%. The point examiners test: a headline that 'the economy grew 5%' can hide near-stagnation once inflation is removed. If the population also grew 0.7%, real GDP per head rose only about 0.8% — which is why living standards can feel flat even as the nominal totals climb. State real, not nominal, and you have already banked a mark.
MechanismEmployment and unemployment
The UK measures joblessness two ways, and AQA expects both. The Labour Force Survey — the internationally comparable ILO measure — counts anyone without a job who is available and actively seeking one; the Claimant Count counts those claiming unemployment-related benefits and is narrower. In 2022 the LFS rate was around 3.7%, near a fifty-year low, yet that single number hides the structure beneath it.
Economists sort unemployment by cause, because the cure differs each time. Frictional unemployment is people between jobs — brief and largely benign. Structural unemployment is a lasting mismatch between the skills workers have and the jobs available, as when coal and steel closures left occupational and geographical immobility behind them. Cyclical, or demand-deficient, unemployment rises in recessions when AD falls. Seasonal unemployment tracks the calendar. A fourth figure matters more than students expect: economic inactivity — those neither working nor seeking work. It climbed after the pandemic as long-term sickness pushed the inactive total towards 2.8 million by 2024, tightening the labour market even while the unemployment rate stayed low. Watch too for underemployment: part-timers wanting full-time hours are counted as employed but are not fully used.
ModelInflation and deflation
Inflation is a sustained rise in the general price level; the UK targets CPI inflation of 2%. CPI is built from a representative basket of around 700 goods and services, each weighted by how much households actually spend on it, and repriced every month — the basket itself is refreshed yearly, which is how streaming subscriptions entered it and DVD players left. The older RPI includes some housing costs and uses a formula that typically runs about a percentage point higher, which is why government quietly prefers CPI for uprating benefits and RPI for charging interest on student loans.
Causes split into two families. Demand-pull inflation is too much spending chasing too few goods — AD outrunning supply in a boom. Cost-push inflation comes from rising costs shifting SRAS left, as the 2022 energy shock did when wholesale gas prices multiplied. The effects are why the target exists: inflation erodes savings, imposes menu and shoe-leather costs, distorts behaviour through fiscal drag, and redistributes from lenders to borrowers. Deflation — actually falling prices — sounds benign but can be worse: Japan's long deflation showed how the expectation of cheaper prices tomorrow freezes spending today and deepens a slump. Keep it distinct from disinflation, which is merely a fall in the rate of inflation while prices are still rising.
With Bank Rate at 5.25% in 2023 and CPI inflation around 6.7%, the real interest rate — the nominal rate minus inflation — was roughly 5.25% − 6.7% = −1.45%, negative in real terms. A saver with £10,000 earning 5.25% received £525 of interest, but inflation cut the real value of the £10,000 by about £670, a net real loss of roughly £145. That is the redistribution mechanism in one line: inflation quietly taxes savers and subsidises borrowers. Answering in real, not nominal, terms is precisely what separates a Level 3 answer from a Level 1 one.
CasePossible conflicts between macroeconomic policy objectives
Now the payoff: the objectives conflict. The classic trade-off is the Phillips curve — lower unemployment tends to arrive with higher inflation, because a tight labour market bids wages up. The 1970s appeared to break the relationship, when stagflation delivered high inflation and high unemployment together, but the short-run trade-off still frames policy, and it framed 2022 exactly. The Bank of England could raise rates to force inflation down, at the risk of weaker growth and rising joblessness, or it could protect jobs and let inflation run. It chose to fight inflation, lifting Bank Rate to 5.25%.
The other conflicts recur across essays. Growth versus inflation: fast, demand-led growth overheats prices. Growth versus the environment: higher output raises emissions and depletes resources, the case for measuring welfare beyond GDP. Growth versus the balance of payments: the late-1980s Lawson boom sucked in imports and blew out the current account. Growth versus inequality: the gains need not be evenly shared. And deficit reduction versus growth: cutting borrowing too fast shrinks AD, as austerity did after 2010. The evaluative move AQA rewards is spotting that no instrument moves one dial without disturbing the others — so 'it depends' should always be anchored to which trade-off is binding.
VocabularyKey terms the mark scheme pays for
TrapsMisconceptions that cost marks
ExamWhat examiners want
This section is the home of ONS data-response questions, so read the numbers like an examiner: quote the specific figure and its date, and always convert to real terms — 'nominal pay rose 6% but with CPI at 9% real pay fell about 3%' is worth more than any adjective. State the 2% CPI target when inflation is in play; it anchors every evaluation.
Match the diagram to the cause. Demand-pull inflation is a rightward AD shift on an AD/AS diagram; cost-push is a leftward SRAS shift; a boom is a positive output gap; a recession is a leftward AD shift opening a negative one. Draw the wrong one and the analysis marks vanish. On the Phillips curve, label the axes (inflation against unemployment) and use it to explain the trade-off, not just to decorate the page.
On 25-markers the strongest evaluation is almost always a conflict-of-objectives point: cooling 2022 inflation with higher rates threatened growth and jobs; the Lawson boom's fast growth wrecked the current account. Name the trade-off, say which side you judge binding and why, and finish with a supported judgement rather than a shrug.