Vocabulary Precision List

#Pearson Edexcel IAL Economics WEC12/01

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#THE PRECISION PRINCIPLE

Every imprecise phrase risks one of three things:

1. AO1 mark at risk — examiner reads Level 2 descriptor ("elements of knowledge")
2. AO2 mark lost — application not demonstrated by informal wording
3. Holistic impression downgraded — examiner's first-stage holistic read places the answer at Level 2 before reading further

The phrases below consistently appear in student scripts alongside Level 2 marks. The column on the right shows the exact phrase that earns the mark.

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#ECONOMY AND GROWTH

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#INFLATION

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#UNEMPLOYMENT

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#AGGREGATE DEMAND

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#MONETARY POLICY

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#SUPPLY-SIDE

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#EVALUATION

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#DANGER COMBINATIONS (TWO IMPRECISIONS TOGETHER)

These are the most expensive combinations — they create holistic Level 2 impressions before the examiner reads further:

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#PART 8: BEFORE AND AFTER — FULL PARAGRAPH EXAMPLES

The real test of vocabulary precision is not single-phrase substitution — it is whether imprecise language survives inside a full paragraph. These five before/after paragraphs show how imprecision compounds: one vague phrase forces other vague phrases because the chain becomes impossible to complete precisely.

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#PARAGRAPH 1 — Monetary policy chain (Level 2 → Level 3)

BEFORE (imprecise — Level 2): "When interest rates rise, people have to pay more to borrow money. This means they spend less. So the economy does worse and things get more expensive to begin with but then start to come down."

AO consequence:

• "Pay more to borrow money" = informal K (AO1 risk)
• "Spend less" = Stage 3 stop, informal (AO3 incomplete)
• "Economy does worse" = zero AO3 (no named variable)
• "Things get more expensive... then come down" = zero AO3 (not economic vocabulary) Estimated: Level 2, 2/4 on a Section B question

AFTER (precise — Level 3): "Egypt's base rate rising from 21.25% to 27.25% increased the cost of variable-rate mortgage repayments and consumer credit, reducing household disposable income. Consumer expenditure (C) contracted as a component of AD = C+I+G+X−M, shifting AD leftward, reducing Egypt's real output below its full employment level (Yfe) and generating downward pressure on demand-pull inflationary pressure as the positive output gap compressed."

What changed: Every vague phrase replaced with the precise economic variable it was gesturing at. The chain now has four complete stages. Same economics — different vocabulary — different mark.

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#PARAGRAPH 2 — Supply-side chain (Level 2 → Level 3)

BEFORE: "When the government invests in education, workers get better at their jobs and the economy improves. This means companies can produce more and GDP goes up. Japan is not very productive so this would help."

AO consequence:

• "Get better at their jobs" = informal (human capital, productivity not named)
• "Economy improves" = zero AO3
• "GDP goes up" = informal, Stage 3 stop
• "Not very productive" = data gesture without figure Estimated: Level 2, 1-2/4

AFTER: "Government investment in education raises the human capital of Japan's workforce, increasing output per worker-hour and reducing unit labour costs. Japan's productivity in 2022 stood approximately 30% below that of the USA — a skills deficit that education investment directly targets. As skills improve, LRAS shifts rightward from LRAS₁ to LRAS₂, raising Japan's full employment output (Yfe) above its current level and enabling non-inflationary GDP growth above the previous trend rate."

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#PARAGRAPH 3 — Recession chain (Level 2 → Level 3)

BEFORE: "In a recession, the economy shrinks and people lose jobs. The government has to spend more on benefits and gets less tax money. Germany went into recession in 2023."

AO consequence:

• "Economy shrinks" = informal (negative real GDP growth required)
• "Loses tax money" = informal (income tax, VAT, corporation tax — all named)
• Germany mentioned but no figures Estimated: Level 2, 2-3/4

AFTER: "Germany's GDP contracting −0.4% in Q1 2023 and −0.1% in Q2 2023 activated the automatic stabiliser mechanism: as cyclical unemployment rose, income tax revenues fell while welfare expenditure increased simultaneously — widening Germany's fiscal deficit through the dual revenue-expenditure mechanism and constraining the government's capacity for counter-cyclical investment."

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#PARAGRAPH 4 — Inflation costs (Level 2 → Level 3)

BEFORE: "High inflation is bad for businesses because they don't know what prices will be in the future. UK inflation was very high at 11% in 2022. This makes it harder for companies to plan and invest."

AO consequence:

• "Bad for businesses" = informal AO1
• "Don't know what prices will be" = uncertainty described but mechanism not named
• "Harder to plan and invest" = Stage 3 stop, no macro outcome Estimated: Level 2, 2-3/4

AFTER: "High and volatile inflation creates economic uncertainty by making multi-year cost and revenue projections unreliable — raising the risk premium firms apply to capital investment and reducing the quantity of projects that clear the hurdle rate. With UK CPI at 11.1% in October 2022, UK business investment remained persistently below its pre-2016 trend as firms deferred capital expenditure decisions, permanently constraining LRAS below its potential trajectory."

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#PARAGRAPH 5 — Evaluation precision (Level 2 → Level 3 evaluation)

BEFORE: "However, this policy might not work because it depends on the type of inflation. Also, it can take time. So it might not always be effective."

AO consequence:

• "Depends on type" = Rung 2 condition, not named
• "Can take time" = time lag named but no mechanism
• "Might not always be effective" = hedge without condition Estimated: Level 2 eval, 1-2/6 on evaluation band

AFTER: "However, the borrowing-cost channel's effectiveness depends on whether Egypt's inflation is predominantly demand-pull in origin. Egypt's pound depreciating 35% in 2023 created a cost-push SRAS shift — meaning rate rises at 27.25% may compress demand without addressing the supply-side inflation source, producing stagflation rather than disinflation. This mechanism holds only if demand-pull forces constitute a substantial share of Egypt's CPI acceleration."

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#PART 4 — BEFORE AND AFTER PARAGRAPH EXTRACTS

The most effective way to internalise vocabulary precision is to see imprecise language corrected in the context of a full paragraph. Each example below shows a student paragraph with imprecise terms, the exact AO consequence, and the corrected version.

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EXTRACT 1 — "prices" vs "price level"

BEFORE (imprecise): "When aggregate demand rises, prices increase. This causes inflation as prices throughout the economy go up."

AO consequence: "prices" could refer to a single market. "Price level" refers to the general average across all markets. The examiner reads ambiguity — the student may be describing a micro market, not the macroeconomy. K mark at risk on diagrams; AO3 chain weakened.

AFTER (precise): "When aggregate demand rises, the general price level increases. This generates demand-pull inflationary pressure as CPI rises above target — reflecting higher prices across the basket of goods and services the average household consumes."

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EXTRACT 2 — "the economy grows" vs named macro outcome

BEFORE: "Supply-side investment in education shifts LRAS rightward. As a result, the economy grows and people are better off."

AO consequence: "The economy grows" = informal, earns no AO3. "People are better off" = informal. Neither names a measurable variable. Stage 4 requires: real GDP, unemployment, CPI, or Yfe — all specific and measurable.

AFTER: "Supply-side investment in education shifts LRAS rightward from LRAS₁ to LRAS₂, raising full employment output (Yfe) above its prior level and enabling real GDP growth above the previous trend rate as productive capacity expands to accommodate demand without generating demand-pull inflationary pressure."

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EXTRACT 3 — "unemployment goes down" vs named mechanism

BEFORE: "When the government increases spending, unemployment goes down because firms hire more workers."

AO consequence: "Goes down" is informal. Correct economic term: "cyclical unemployment falls." More importantly — why do firms hire? The chain is broken. What is the mechanism connecting higher G to employment decisions?

AFTER: "As government expenditure raises the G component of AD, the rightward AD shift raises actual output toward full employment potential (Yfe), reducing cyclical unemployment as firms increase hiring to meet the rising demand for goods and services — with each employed worker generating further consumer spending through the multiplier."

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EXTRACT 4 — "savings" vs "withdrawals" in multiplier context

BEFORE: "The multiplier works because people spend their income. Money keeps circulating until it is saved."

AO consequence: "Saved" is only one withdrawal. The multiplier leaks through saving (S), taxation (T), and imports (M). Stating only saving understates the MPW and implies the multiplier is larger than it is. This is an accuracy error, not just imprecision.

AFTER: "The multiplier amplifies any injection until it is fully withdrawn through the three leakages: saving (S), taxation (T), and import spending (M). The multiplier value k = 1/MPW where MPW = MPS + MPT + MPM — meaning a higher marginal propensity to save, pay tax, or import reduces the multiplier effect."

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EXTRACT 5 — "the exchange rate falls" vs direction-specific language

BEFORE: "If interest rates fall, the exchange rate falls, making exports more competitive."

AO consequence: "Falls" is ambiguous for exchange rates — the pound can fall against the dollar (depreciation) or fall in a fixed rate context (devaluation). Examiner language requires: "depreciates" (floating rate) or "devalues" (fixed/managed rate).

AFTER: "If interest rates fall, capital outflows increase as investors seek better returns abroad, causing the domestic currency to depreciate — reducing the foreign currency price of domestic exports and improving their price competitiveness in international markets."

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EXTRACT 6 — "government should cut interest rates" vs precise policy instrument

BEFORE: "To reduce unemployment, the government should cut interest rates."

AO consequence: Two errors. First, interest rates are set by the central bank (Bank of England, ECB, PBoC), not the government. Second, "cut interest rates" is imprecise — the central bank's policy instrument is the base rate (or bank rate), which influences but does not directly determine commercial lending rates.

AFTER: "To reduce cyclical unemployment, the central bank could reduce the base rate, lowering commercial borrowing costs, stimulating consumer expenditure and business investment, shifting AD rightward and reducing the negative output gap that generates cyclical unemployment."

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EXTRACT 7 — "supply" vs "aggregate supply"

BEFORE: "Supply-side policies improve supply in the economy, shifting the supply curve to the right."

AO consequence: "Supply" and "supply curve" are microeconomic terms referring to individual market supply. In macroeconomics: "aggregate supply" and "LRAS" or "SRAS." Using micro language on a macro question signals conceptual confusion — the examiner cannot be confident the student understands the difference.

AFTER: "Supply-side policies improve productive potential, shifting the long-run aggregate supply (LRAS) curve rightward and raising the economy's full employment output level (Yfe)."

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EXTRACT 8 — "the pound gets stronger" vs precise exchange rate language

BEFORE: "Higher interest rates cause the pound to get stronger, which helps reduce inflation."

AO consequence: "Gets stronger" is informal. Precise language: "appreciates" (for a floating currency) or "revalues" (fixed). Additionally, the mechanism is incomplete — WHY does appreciation help reduce inflation?

AFTER: "Higher base rates attract capital inflows seeking improved returns on sterling assets, causing sterling to appreciate — reducing the domestic currency price of imported goods and raw materials, directly lowering import cost-push inflationary pressure as the import price pass-through transmits to domestic CPI."

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EXTRACT 9 — "inflation is bad for the economy" as evaluation

BEFORE: "Inflation is bad for the economy because it reduces purchasing power. This means people cannot buy as much with their money."

AO consequence: "Bad for the economy" is not evaluation — it is a value judgement without mechanism. "Cannot buy as much" = Stage 2 at best. The evaluation mark requires a specific cost mechanism with a condition: competitiveness, uncertainty, redistribution, or menu costs — each with a specific named consequence.

AFTER: "High inflation erodes international competitiveness — UK CPI at 11.1% substantially above EU rates of 2–5% caused real exchange rate appreciation, raising the foreign currency price of UK exports and reducing their price competitiveness, worsening net exports (X−M) as a component of AD and deteriorating the current account deficit beyond its structural level."

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EXTRACT 10 — "recession" vs technical definition

BEFORE: "During a recession, the economy gets worse and unemployment rises. The government has to spend more."

AO consequence: "Gets worse" is informal. A recession has a specific technical definition: two or more consecutive quarters of negative real GDP growth. Using informal language on a define question earns zero. Using it in an essay suggests imprecise knowledge.

AFTER: "During a recession — defined as two or more consecutive quarters of negative real GDP growth — cyclical unemployment rises as firms reduce labour demand in response to falling output, simultaneously triggering the automatic stabiliser mechanism as welfare expenditure rises and income tax revenues fall."

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