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Check out our latest collection of supplementary books, guides, flashcards, practice questions for Economics, Statistics, Mathematics and many other academic subjects to ace your Cambridge, AP and Undergraduate Exams.









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No perfectly competitive market has ever existed — and it is still the most important model in economics, because it is the only structure where the invisible hand provably works. The complete guide: the five assumptions, P=AR=MR, the shutdown rule, the zero-profit theorem, allocative and productive efficiency, the welfare theorems, Schumpeter’s dynamic-efficiency objection, and Baumol’s contestable markets. With calculus and four practice questions.
Study smarterAverage and marginal product, and why MP cuts AP at its maximum, are worked through with full diagrams in the Economics Made Simple Complete Bundle — textbook, practice questions with mark schemes, flashcards and 100 case studies. Why do we need to...
In 1911 the US broke up Standard Oil and Rockefeller got richer. The complete guide to monopoly: the Amoroso-Robinson relation, the Lerner index, why a monopolist has no supply curve, the three degrees of price discrimination, natural monopoly regulation — and why Harberger’s deadweight-loss triangle is the smallest of monopoly’s three costs, alongside Tullock’s rent-seeking and Leibenstein’s X-inefficiency. With full derivations and four practice questions.
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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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