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Learn how the doughnut economics model links social needs to planetary boundaries and how to apply it in IB ESS sustainability exam responses.
Learn what environmental economics studies in IB ESS HL, including market failure, polluter-pays policies, environmental valuation, and key exam distinctions.
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Learn how land, labour, capital and entrepreneurship contribute to production, with precise definitions, examples and exam guidance for IB Economics.
Read the answerLearn how microeconomics studies individual markets while macroeconomics examines the whole economy, with IB examples and exam advice for SL and HL.
Understand scarcity in IB Economics, how limited resources force choices and opportunity costs, and how to explain it effectively in an exam response.
Learn how scarcity forces economies to decide what, how, and for whom to produce, with precise terminology and exam guidance for IB Economics.
Learn what free goods are in IB Economics, why they have no opportunity cost, how they differ from economic and public goods, and how to identify them.
Learn what opportunity cost means in IB Economics, how it arises from scarcity and choice, and how to explain it using examples and a PPC diagram.
Learn what the circular flow model shows: interactions among economic sectors, real and money flows, leakages, injections, and equilibrium.
Learn how the production possibilities curve shows scarcity, choice, opportunity cost, efficiency, unemployment and economic growth in IB Economics.
Learn how increasing and constant opportunity cost affect a PPC's shape and slope, why each occurs, and how to explain both clearly in IB Economics exams.
Learn how saving, taxes and imports leak from the circular flow, while investment, government spending and exports inject income into the economy.
Learn how positive economics uses testable claims while normative economics uses value judgments, with IB examples and essential exam technique.
Compare free market, planned, and mixed economies by ownership, resource allocation, incentives, and government intervention for IB Economics exams.
Learn how ceteris paribus isolates economic relationships, supports models such as demand, and should be applied in IB Economics exam responses.
Learn what empirical evidence means in IB Economics, how economists use real-world data to test hypotheses, and how to apply it in exam answers.
Learn how Adam Smith's laissez-faire economics relies on self-interest, competition and markets, while retaining an important role for government.
Learn how equity differs from equality in IB Economics, with examples of taxation, education, income distribution, and precise exam terminology.
Learn how Say's law links production, income, and demand in classical macroeconomics, including its assumptions, limitations, and IB exam relevance.
Learn how the Keynesian revolution challenged classical economics, explained persistent unemployment, and justified government demand management.
Learn how monetarist/new classical economics explains inflation, full-employment output, automatic market adjustment, and policy for IB Economics exams.
Learn how behavioural economics uses psychology to explain bounded rationality, biases and nudges, with precise IB Economics exam guidance for SL and HL.
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