In July 2012 the euro was days from breaking apart. Three words from the ECB President ended the crisis without a euro being spent. The complete guide to central banks: Bagehot and the lender of last resort, how money is really created, the Taylor principle, Kydland-Prescott time inconsistency, Volcker’s costly credibility and Draghi’s free credibility — with worked calculations and three practice questions.
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Economics Made Simple: A Supplementary Guide for AP and Cambridge A Level Students
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Economics Made Simple Practice Questions
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Printable Flashcards for Economics
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Economics Case Studies: 100 Real-World Examples with Expert Analysis for Researchers, Teachers and Students
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Consumer Price Index (CPI): Construction, Bias, and Its Impact on Interest Rates
A single monthly number sets pensions, interest rates, and the real value of national debt — built from a basket nobody buys, weighted by an out-of-date survey, using a formula known to be biased since 1922. The complete guide to the CPI: construction, the four Boskin biases, hedonic adjustment, RPI’s formula effect, Argentina’s statistical scandal, the Fisher equation and the Taylor principle. With worked calculations and four practice questions.
Measuring Living Standards by GNI
By Valeria Popa: Let us first distinguish between GNI, GDP and GNP to understand how is GNI different from these two measuring indicators. GNI compared to GDP and GNP While Gross Domestic Product (GDP) and Gross National Product (GNP) measure the output of an economy,...
Mean, Median and Mode: Definitions, Differences and Examples
Statistics · Descriptive StatisticsMean, Median and ModeThe three measures of central tendency — what they are, how to calculate them, and which one to use depending on your data.When economists analyse income data or teachers review exam scores, they need a single...
Type I vs Type II Errors: A Way to Never Confuse Them Again
A false positive and a false negative — everyone mixes them up. The “boy who cried wolf” mnemonic that runs Type I then Type II in order, the trade-off nobody explains, why power = 1−β, and why which error to fear is a values judgement, not a formula.
What a P-Value Actually Means (And the Three Things It Doesn’t)
The p-value is the probability of data this extreme assuming the null is true — not the probability the null is true, not the chance your result was luck, not the probability the alternative holds. The one correct definition, the three seductive wrong ones, and why significant doesn’t mean important.
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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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