Social Studies
Economics
Choices, markets and prices, money and banking, and how whole economies grow.
- 10 chapters
- 30 lessons
- All free
Chapters
1
Economic Choices
Explore economic choices through explanations, original examples, concept flashcards, and section-linked practice.
3 lessons
- 1.1Scarcity and opportunity costChoosing one activity often means giving up another. The important cost is the best alternative you actually lose, not every imaginable alternative.
- 1.2IncentivesAn incentive changes what someone gains or gives up by acting. People may respond differently, so predict the mechanism rather than assuming everyone makes the same choice.
- 1.3Tradeoffs and economic modelsA model is a simplified map of a decision. Check its assumptions and distinguish what the model predicts from what you think ought to happen.
2
Markets and Prices
Explore markets and prices through explanations, original examples, concept flashcards, and section-linked practice.
3 lessons
- 2.1SupplySupply describes sellers' plans across different prices. A change in the product's price moves along the curve; a change in production conditions can move the whole curve.
- 2.2DemandDemand means being willing and able to buy. Wanting a product without the means to buy it is not the same as market demand.
- 2.3Equilibrium and price changesAn equilibrium matches buyers' and sellers' plans in a model. A shortage or surplus helps explain pressure for change, but real markets may adjust slowly.
3
Consumers and Producers
Explore consumers and producers through explanations, original examples, concept flashcards, and section-linked practice.
3 lessons
- 3.1Consumer choicesConsumers compare benefits with limited money and time. An appealing price is only one part of the decision; alternatives and information matter too.
- 3.2Costs and revenueRevenue is money coming in from sales, not profit. To understand a business decision, subtract relevant costs and ask what changes with one more unit.
- 3.3CompetitionCompetition is a process as well as a market description. Compare sellers' options, buyers' alternatives, and barriers that stop new firms from entering.
4
Market Structures
Explore market structures through explanations, original examples, concept flashcards, and section-linked practice.
3 lessons
- 4.1Competitive marketsA perfectly competitive market is a benchmark model. Its assumptions explain its predictions, so first check whether the real market resembles those assumptions.
- 4.2Monopoly and market powerMarket power means influence over price or terms. It does not mean a seller can charge any price without losing customers.
- 4.3Externalities and public goodsSome effects fall on people outside a purchase. Other goods are hard to reserve for paying customers. These features can make private incentives differ from public outcomes.
5
Work and Income
Explore work and income through explanations, original examples, concept flashcards, and section-linked practice.
3 lessons
- 5.1Labor marketsLabor markets connect workers' choices with employers' needs. Wages reflect institutions and bargaining as well as the simple supply-and-demand picture.
- 5.2ProductivityProductivity asks how much output comes from an input. Better tools and organization can help, but a productivity increase is not automatically shared equally.
- 5.3Wages and educationEducation can change opportunities, but average earnings differences are not a guarantee for one person. Costs, completion, field, and local opportunities affect the comparison.
6
National Economic Measures
Explore national economic measures through explanations, original examples, concept flashcards, and section-linked practice.
3 lessons
- 6.1GDP and outputGDP counts production within a place during a period. It is useful for output comparisons, but it is not a complete report card on people's lives.
- 6.2InflationInflation is a broader rise in prices, not one expensive item. Slower inflation still means prices can be rising.
- 6.3Unemployment and limitations of indicatorsUnemployment statistics use a defined population and rules. Someone without a job is not automatically counted in the headline unemployment measure.
7
Economic Growth and Cycles
Explore economic growth and cycles through explanations, original examples, concept flashcards, and section-linked practice.
3 lessons
- 7.1Growth and living standardsEconomic growth increases productive output, but living standards also depend on access, health, distribution, and environmental conditions.
- 7.2Business cyclesA business cycle is an uneven pattern of expansion and contraction. It is not a clock with identical intervals.
- 7.3Recession and recoveryA recession affects more than a single number. Recovery can begin while many people still face hardship, and different sectors recover at different speeds.
8
Government and the Economy
Explore government and the economy through explanations, original examples, concept flashcards, and section-linked practice.
3 lessons
- 8.1Taxes and spendingGovernment budgets collect resources and allocate them. Distinguish who pays, what services are purchased, and which costs are transferred across time.
- 8.2Fiscal policyFiscal policy changes government spending or taxes. Its effects depend on the economic setting and how people respond, so a label alone does not establish the result.
- 8.3Regulation and tradeoffsRegulation changes incentives and constraints. Evaluate the problem, proposed mechanism, enforcement, and trade-offs rather than assuming all rules have identical effects.
9
Money and Banking
Explore money and banking through explanations, original examples, concept flashcards, and section-linked practice.
3 lessons
- 9.1Functions of moneyMoney helps people trade without finding a perfect barter partner. Its functions depend on acceptance and institutions rather than the object's appearance alone.
- 9.2Banks and creditBanks connect payment services, deposits, and lending. Lending involves risk, and a bank must manage withdrawals and its financial condition.
- 9.3Central banking and monetary policyA central bank influences financial conditions rather than directly controlling every price or job. The effects travel through several channels and take time.
10
International Economics
Explore international economics through explanations, original examples, concept flashcards, and section-linked practice.
3 lessons
- 10.1Comparative advantageComparative advantage is about what you give up, not simply who makes more. Trade can create total gains while leaving their distribution unsettled.
- 10.2Trade and exchange ratesAn exchange rate is a price between currencies. Keep track of which currency is quoted, then consider how trade costs and local prices affect the result.
- 10.3Analyzing an economic policy claimAn economic claim needs a comparison and a mechanism. Check what changed, who was affected, and whether the evidence separates the policy from other causes.