This official Pearson Edexcel IGCSE Economics guide details the division between Paper 1 (Micro) and Paper 2 (Macro), emphasizing critical examiner insights. It provides actionable strategies for quantitative accuracy, diagram labeling precision, and structuring high-tariff levels-based responses to secure a Grade 9.
A scientific or graphical calculator is permitted. Graphical calculators must be in exam mode with all stored programs and data cleared before the exam; the calculator must not be able to retrieve stored text or formulae.
AO1: AO1 Recall, select and communicate knowledge of economic terms, concepts and rules (26.3%)
AO2: AO2 Apply knowledge and understanding to create, analyse and extract information from various sources (36.2%)
AO3: AO3 Analyse economic problems and issues using appropriate data and concepts (18.8%)
AO4: AO4 Evaluate economic decisions, policies and arguments (18.7%)
過去問と採点基準にもとづいて作成（2023–2025）。
電卓プログラム
Table mode for roots & turning points
Scientific calculator (e.g. Casio fx-991 series)
目的: Tabulate \(y\) across a range of \(x\) to locate sign changes (roots) and approximate maxima/minima.
使う場面: Solving or sketching a function when you want to find where its graph crosses or turns.
手順
Enter the function in TABLE mode, set the start, end and step, then read where the sign of \(y\) changes or where it peaks.
試験での注意: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
Statistics mode (mean, SD & regression)
Scientific calculator (e.g. Casio fx-991 series)
目的: Read the mean \(\bar{x}\) and standard deviation directly, and the gradient/intercept (and \(r\)) of a linear regression for bivariate data.
使う場面: Any data-handling, statistics, or required-practical analysis question.
手順
Enter the data in STAT mode (1-VAR or A+BX), then recall \(\bar{x}\), \(\sigma\) or the regression coefficients.
試験での注意: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
Carry exact values with Ans & memory
Scientific calculator (e.g. Casio fx-991 series)
目的: Keep full-precision intermediate values to avoid rounding errors.
使う場面: Multi-step calculations where premature rounding loses the final accuracy mark.
手順
Use Ans, STO/RCL or the M+ memory to reuse the unrounded result of each step; round only the final answer.
試験での注意: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
Equation solver — to CHECK your working
Scientific calculator (e.g. Casio fx-991 series)
目的: Use the built-in EQN/SOLVE mode to verify roots of quadratics or simultaneous equations you have already solved by algebra.
使う場面: As a check only, after solving by hand.
手順
Enter the coefficients in EQN mode (or use SOLVE) and confirm they match your worked solution.
試験での注意: Allowed, but clear stored programs/data (graphical calculators in exam mode) and show the required working — unsupported calculator answers score no method marks.
よくあるミス
1high影響する配点: 1Sectors of the economy & general quantitative skills
Omitting currency symbols, percentage signs, or scale labels (such as 'bn' or 'million') in quantitative calculation answers.
回避方法: Always check the units in the question prompt (e.g. €, £, %, or bn) and include them in your final answer. A correct number without units is capped at 1 mark instead of 2.
2medium影響する配点: 2Government policies
Writing evaluative balance or counter-arguments on 6-mark 'Analyse' questions.
回避方法: Keep the analysis entirely one-sided. 6-mark questions do not reward AO4 (evaluation) marks. Adding balanced evaluation is a waste of examination time with zero return.
3high影響する配点: 2Demand, supply and market equilibrium
Failing to draw original curves, new curve shifts, or labeling equilibrium points (P1, Q1) on supply/demand shift diagrams.
回避方法: Use a ruler to draw straight shifts, label the new curve clearly (e.g. S1 or D1), and use dashed lines to connect the new equilibrium point directly to both the price and quantity axes.
4high影響する配点: 6Government policies
Providing single-sided responses to 9-mark 'Assess' or 12-mark 'Evaluate' questions.
回避方法: Always provide a balanced response with counter-arguments. For 12-mark questions, you must also provide a supported final judgment that explicitly addresses the extent of the impact.
5medium影響する配点: 3Macroeconomic objectives
Confusing a fiscal deficit with a current account deficit.
回避方法: Remember that a fiscal deficit occurs when government spending exceeds tax revenue, whereas a current account deficit occurs when import spending exceeds export revenues.
6high影響する配点: 1Sectors of the economy & general quantitative skills
Failing to round calculation questions strictly to exactly two decimal places when requested.
回避方法: Unless stated otherwise, always carry out the division fully and round your final numeric answer to exactly two decimal places (e.g., 12.79% instead of 12.8% or 13%).