IB DP · 試験対策

Economics 試験対策

An elite study and exam-preparation package for IB DP Economics, featuring an analysis of the Nov 2025 assessment blueprint, standard-setting advice on essay structures, precise diagram-labeling rules, and critical calculation checks designed to secure a Level 7.

読了時間 4 分更新日: 2026年6月21日

試験の概要

試験数
3
満点
125
制限時間
4時間 45分
出題形式
5
試験時間配点問題数配点比率出題形式
Paper 11時間 15分25
Paper 21時間 45分40
Paper 31時間 45分60
評価段階
7654321
電卓の規定

A graphic display calculator (GDC) from the IB-approved list is required for most Mathematics and Sciences papers and must be set to examination mode. Note that some papers do not permit a calculator (for example Mathematics Paper 1 and the multiple-choice Sciences Paper 1).

  • AO1: Knowledge and understanding of specified content (30%)
  • AO2: Application and analysis of key economic concepts and theories (35%)
  • AO3: Synthesis and evaluation of economic arguments and policies (25%)
  • AO4: Use and application of appropriate economic skills (10%)

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

Graph: zeros, intersections & turning points

Graphical calculator / GDC (exam mode)

目的: Plot a function to read its roots (zeros), points of intersection, and maxima/minima.

使う場面: Checking solutions, sketching, or solving where an analytic method is hard.

手順
Graph the function(s) and use the built-in zero, intersect and maximum/minimum tools.

試験での注意: Use a GDC from the IB-approved list in examination mode. Some papers do not permit a calculator. Always show your reasoning.

Numerical equation solver

Graphical calculator / GDC (exam mode)

目的: Solve an equation or find a variable numerically when an algebraic route is long or implicit.

使う場面: Iterative or implicit equations, or to confirm an algebraic solution.

手順
Use the equation/zero solver, entering the equation and a sensible starting estimate.

試験での注意: Use a GDC from the IB-approved list in examination mode. Some papers do not permit a calculator. Always show your reasoning.

Numerical integration & differentiation

Graphical calculator / GDC (exam mode)

目的: Evaluate a definite integral \(\int_a^b f(x)\,dx\) or a gradient \(f'(x)\) at a point.

使う場面: Checking calculus answers, or where only a numerical value is needed.

手順
Use the GDC's numeric integral / derivative function with the limits or the point.

試験での注意: Use a GDC from the IB-approved list in examination mode. Some papers do not permit a calculator. Always show your reasoning.

Statistics & probability distributions

Graphical calculator / GDC (exam mode)

目的: 1-var/2-var statistics, linear regression, and cumulative binomial / normal / Poisson probabilities without tables.

使う場面: Statistics questions and hypothesis tests.

手順
Enter data in the statistics editor, or use the distribution menu (binomial cdf, normal cdf, …).

試験での注意: Use a GDC from the IB-approved list in examination mode. Some papers do not permit a calculator. Always show your reasoning.

よくあるミス

  1. 1high影響する配点: 4Role of government in microeconomics

    Explaining only one non-price determinant or benefit when the Part (a) question specifically requests 'two', which limits the candidate's score to a maximum of 6/10 marks.

    回避方法: Carefully read the prompt. Use explicit signposts such as 'The first determinant is...' and 'The second determinant is...' to ensure you fully develop two distinct concepts with balanced detail.
  2. 2medium影響する配点: 2Role of government in microeconomics

    Failing to show a clear shaded area representing the total cost of a subsidy to the government on demand/supply diagrams.

    回避方法: Illustrate the subsidy by drawing a vertical distance between the original supply curve and the post-subsidy supply curve. Shade the entire rectangle from the consumer price to the producer price over the new equilibrium quantity.
  3. 3high影響する配点: 2Exchange rates

    Labeling exchange rate diagram axes with generic markers such as 'P' and 'Q' instead of relative designations.

    回避方法: Always label the vertical axis as the price of the base currency in terms of the quote currency (e.g., 'USD per ARS' or 'Price of Kina in USD') and the horizontal axis as 'Quantity of [Currency Name]'.
  4. 4high影響する配点: 2Measuring economic activity and illustrating its variations

    Forfeiting calculation marks by writing down only the final numerical answer without showing intermediate formulas or steps.

    回避方法: Write the full formula first (e.g., GDP deflator or PED), show the substituted values in a clear step-by-step format, and ensure the final answer includes the proper units (%, currency symbols, or millions/billions).
  5. 5high影響する配点: 6Arguments for and against trade control/ protection

    Writing one-sided, unbalanced evaluations in Part (b) or Part (g) questions, such as listing only the drawbacks of trade protection without evaluating the advantages.

    回避方法: Structure essays to show balanced viewpoints. Evaluate policies using short-run versus long-run timelines, impacts on key stakeholders, and comparative alternative strategies before drawing a reasoned conclusion.
  6. 6high影響する配点: 6Economic growth and/or economic development strategies

    Using hypothetical examples (like 'Country X' or 'Firm Y') or generic regions ('in Africa') instead of concrete, localized, real-world case studies.

    回避方法: Build a revision database of specific country actions (e.g., Argentina's 2023-2024 economic shock reforms or Papua New Guinea's extraction tax policy) and directly integrate these details into your analytical arguments.
  7. 7medium影響する配点: 4Market failure—public goods

    Confusing public goods with government-provided merit goods like state education or health services.

    回避方法: Define public goods strictly by their two defining properties: non-excludability and non-rivalry. Remember that merit goods are excludable and rivalrous, but underprovided by the free market.

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