Complete EconTutorials Content Library

September 12, 2017

Welcome to the EconTutorials Content Library

Everything published on EconTutorials — in one place, organised by subject. Whether you’re studying for AP Economics, Cambridge A-Level, IB, or undergraduate exams, use this page to find exactly what you need.

🛒 EconTutorials Shop

Structured revision resources — textbook, practice questions, flashcards, and case studies. Instant PDF download.

📖

Economics Made Simple

914 pages. 30 chapters. 450 exam questions with worked answers. AP and A-Level.

$19

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✏️

Practice Questions

Hundreds of exam-style questions with fully worked answers. AP and Cambridge A-Level.

$9

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🗂️

Flashcards

358 terms, definitions, and formulas. Organised by topic. Print or use digitally.

$5

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Case Studies

100 real-world examples — Google, OPEC, Zimbabwe — with data, analysis, exam guidance. 543 pages.

$9

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🎁

Complete Bundle

Textbook + Questions + Flashcards + Case Studies. Everything in one purchase.

$42 $29

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🆕

Free Sample Chapters

Two complete chapters from the textbook. No sign-up required.

FREE

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📊 Microeconomics

Markets, consumer theory, firm decisions, and competition. Core content for AP Micro and Cambridge A-Level Paper 2 (9708).

Foundations of Markets

Elasticity

Consumer Theory

Production Theory and Costs

Market Structures

Game Theory, Externalities and Welfare

📈 Macroeconomics

GDP, inflation, unemployment, monetary policy, and economic growth. Core content for AP Macro and Cambridge A-Level Paper 4 (9708).

GDP and National Income

Inflation

Unemployment and Aggregate Demand/Supply

Money, Banking and Monetary Policy

Growth and Development

📉 Statistics for Economists

Descriptive statistics, probability, distributions, and measures of spread. Essential for Cambridge Paper 4 and undergraduate quantitative methods.

🔬 Econometrics

Regression analysis, OLS estimation, dummy variables, and specification issues. For undergraduate and advanced A-Level students.

🎓 Applied and Advanced Topics

Specialised areas for IB, undergraduate students, and anyone going beyond the core AP or A-Level syllabus.

💡 General Resources and Study Guides

Exam technique and practical guides for economics students.

For questions, email marjanarbab@gmail.com or visit our Facebook page. This index is updated as new content is published.

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Profit Maximisation with Calculus: First and Second Order Conditions

Setting the derivative to zero finds a flat point – but flat points can be maxima or minima, and choosing wrong reverses your answer. The first and second order conditions explained, with a worked cubic profit function where the FOC alone gives two candidates and only the SOC tells them apart.

Paired vs Independent t-test: How to Tell Them Apart

Same test name, completely different setups. One question decides it: is each value in group A naturally linked to a specific value in group B? Why the paired test cancels between-person noise and is far more powerful when it applies — and how picking wrong quietly throws away half your statistical power.

Z-Scores and the Normal Distribution: A Plain-English Guide

A z-score is how many standard deviations a value sits from the mean — a universal ruler that lets you compare across any scale. The z = (x−μ)/σ formula, the 68–95–99.7 rule, the three-step method for “what percentage scored above X?”, and the direction error that catches everyone.