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Economics Made Simple

An Economics Textbook of 30 chapters. Every topic on the AP and Cambridge A-Level syllabus covered with worked diagrams, exam technique, and full answer keys. The supplementary textbook that makes rigorous economics genuinely understandable.

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Economics Made Simple Bundle

The Economics Made Simple Complete Bundle combines our full 30-chapter textbook, a comprehensive practice question bank, a flashcard deck for rapid revision, and 100 real-world case studies — all designed for AP, Cambridge A-Level, IB, and undergraduate students. Valued at $42, yours for $29.

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Economics 100 Case Studies

Dive deep into the world of economics with our curated collection of 100 case studies. Each study offers a unique perspective on real-world events, making complex theories accessible and engaging. Perfect for students and educators alike, these stories illuminate the principles of economics in action, providing invaluable insights that extend beyond the classroom.

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The Cobb-Douglas Production Function: Returns to Scale, Elasticity and Cost Minimisation

by | Jul 23, 2026 | ,

The exponents in Q = AL^α K^β are not just parameters — they are output elasticities, they sum to the returns to scale, and under competition they equal income shares. A complete guide to the Cobb-Douglas production function: marginal products, diminishing returns vs returns to scale, cost minimisation, Solow’s growth accounting, and the declining labour share — with worked examples and exam technique.

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Economics Made Simple — The Complete Bundle

The Complete Bundle brings together everything we have built for AP and Cambridge A-Level Economics students: the full 914-page supplementary textbook, a 450-question practice workbook with mark schemes, a rapid-revision flashcard deck, and 100 real-world case studies with expert analysis. Four products, one price — designed to take you from first principles to exam-ready.

Most students use the textbook to understand the theory, the practice questions to test themselves under timed conditions, and the flashcards in the final week before the exam. The case studies sit alongside both — every concept grounded in something that actually happened, from carbon pricing in Sweden to the 2008 financial crisis. It is the study system we wish we had when we were students.

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