Comprehensive study and exam-tips package for Pearson Edexcel A Level Economics B (9EB0). Features deep insights into Paper 1, 2, and 3 structures, step-by-step guidance on calculation layouts, and tactical advice on drafting high-scoring 20-mark evaluation essays without dropping easy marks on diagrams or generic conclusions.
A scientific or graphical calculator that meets JCQ regulations may be used (some GCSE Mathematics and Science papers are non-calculator). Graphical calculators must be set to exam mode; you must clear any stored programs, notes or data before the exam, and the calculator must not be able to retrieve stored text or formulae.
AO1: AO1: Demonstrate knowledge of terms/concepts/theories (23%)
AO2: AO2: Apply knowledge to a variety of contexts (26%)
AO3: AO3: Analyse economic and business issues (26%)
AO4: AO4: Evaluate economic and business decisions/policies/proposals (25%)
根据历届试题与评分标准整理（2022–2024）。
计算器程序
Graph: zeros, intersections & turning points
Graphical calculator / GDC (exam mode)
用途: Plot a function to read its roots (zeros), points of intersection, and maxima/minima.
使用时机: Checking solutions, sketching, or solving where an analytic method is hard.
步骤
Graph the function(s) and use the built-in zero, intersect and maximum/minimum tools.
考试提示: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
Numerical equation solver
Graphical calculator / GDC (exam mode)
用途: Solve an equation or find a variable numerically when an algebraic route is long or implicit.
使用时机: Iterative or implicit equations, or to confirm an algebraic solution.
步骤
Use the equation/zero solver, entering the equation and a sensible starting estimate.
考试提示: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
Numerical integration & differentiation
Graphical calculator / GDC (exam mode)
用途: Evaluate a definite integral \(\int_a^b f(x)\,dx\) or a gradient \(f'(x)\) at a point.
使用时机: Checking calculus answers, or where only a numerical value is needed.
步骤
Use the GDC's numeric integral / derivative function with the limits or the point.
考试提示: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
Statistics & probability distributions
Graphical calculator / GDC (exam mode)
用途: 1-var/2-var statistics, linear regression, and cumulative binomial / normal / Poisson probabilities without tables.
使用时机: Statistics questions and hypothesis tests.
步骤
Enter data in the statistics editor, or use the distribution menu (binomial cdf, normal cdf, …).
考试提示: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
常见错误
1high涉及分数: 2Price determination
Drawing supply and demand diagrams with missing axes labels, missing equilibrium lines, or reversed shift indicators (e.g. showing a supply shift instead of a demand shift when restrictions are lifted).
如何避免: Always label your axes (Price and Quantity for micro, Price Level and Real GDP for macro), draw dashed lines connecting equilibriums to the axes, and include arrows showing the direction of the curve shift.
2high涉及分数: 6The wider economic environment
Treating long-form evaluation essays as generic textbook summaries without applying details from the provided case studies.
如何避免: Integrate specific data points, dates, company names, or macroeconomic events directly from the text to anchor your chains of reasoning into the real-world context.
3medium涉及分数: 4Profit and loss
Failing to convert mathematical units correctly in quantitative calculation tasks, such as mixing up millions and billions, or omitting necessary units (like % or currency symbols).
如何避免: Write down the full formula first, solve intermediate steps clearly on paper, check the scale of the numbers, and always append the correct symbol (e.g., % or £/$) with the specified decimal rounding.
4high涉及分数: 8Arguments for and against regulation
Writing one-sided arguments in 20-mark evaluation essays without presenting counter-arguments or a final dependent conclusion.
如何避免: Adopt a balanced essay structure: analyze benefits, evaluate constraints or drawbacks, and construct a final judgment that explicitly states 'On what does this depend?'.
5medium涉及分数: 4Inflation
Confusing deflation (a sustained drop in the general price level) with disinflation (a slowing down of price level growth).
如何避免: Remember that if the Consumer Price Index (CPI) increases but at a lower rate (e.g. from 10% to 5%), it is disinflation. CPI must actually fall (negative rate) for it to be deflation.
6medium涉及分数: 6Exchange rate changes
Assuming a depreciation of the exchange rate will automatically improve the balance of trade without acknowledging the roles of price elasticity of demand (PED) or the Marshall-Lerner condition.
如何避免: Evaluate the impact by discussing how import/export volumes will change depending on whether demand is price elastic or inelastic in the short-run vs. long-run.