OCR•A-Level•Economics
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Firms and Market Structures
Costs, revenues, profits, and market structures
Practice 88 subtopics in Firms and Market Structures. All questions match the OCR A-Level specification.
About Firms and Market Structures
Firms and Market Structures is a key topic in the OCR A-Level Economicsspecification. This topic covers costs, revenues, profits, and market structures.
Master all 88 subtopics below with unlimited AI-generated questions. Each subtopic page includes sample questions and the ability to generate unlimited practice questions with detailed solutions.
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Profit maximisationMC = MR ruleRevenue maximisationMR = 0Sales maximisationAC = ARSatisficingShort runLong runLaw of diminishing returnsTotal productAverage productMarginal productFixed costsVariable costsTotal costsAverage costsMarginal costsShort-run cost curvesRelationship between AC and MCLong-run average cost curveEconomies of scaleInternal economies of scaleTechnicalPurchasingManagerialFinancialMarketingRisk-bearingExternal economies of scaleDiseconomies of scaleMinimum efficient scaleTotal revenueAverage revenueMarginal revenueNormal profitSupernormal profit (abnormal profit)Profit calculationAssumptionsMany firmsHomogeneous productsPerfect knowledgeNo barriers to entry/exitPrice takerShort-run equilibriumLong-run equilibriumEfficiency in perfect competitionFeatures of monopolyBarriers to entrySources of monopoly powerMonopoly equilibriumDeadweight loss from monopolyFeaturesProduct differentiationShort-run equilibriumLong-run equilibriumFeatures of oligopolyConcentration ratioInterdependenceKinked demand curvePrice rigidityNon-price competitionCollusionCartelsTacit collusionGame theoryPrisoner's dilemmaContestabilityLow sunk costsHit and run competitionImplicationsFirst degreeSecond degreeThird degreeConditions for price discriminationAllocative efficiencyProductive efficiencyDynamic efficiencyX-inefficiencyFeatures of natural monopolyRegulation optionsOrganic growthExternal growthHorizontal integrationVertical integrationConglomerate integrationReasons for growthConstraints on growth
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