Economics Overview
โDefinition: Science explaining choices made due to scarce resources (limited
availability vs. unlimited human wants).
Scarcity and Choice
โScarcity: Limited resources vs. unlimited wants (e.g., time, government budget).
โChoice: Decision-making involves trade-offs (e.g., defense vs. health care, leisure vs.
work).
Economic Agents
โHouseholds: Individuals making joint decisions.
โFirms (Businesses): Groups producing goods and services.
โGovernment: Federal, State, Local authorities managing public resources.
Opportunity Cost
โDefinition: The value of the next best alternative forgone when making a choice (e.g.,
choosing between college and work).
Factors of Production
โLand: Natural resources (e.g., minerals, oil).
โLabor: Human effort (physical and mental).
โCapital: Man-made resources (machinery, infrastructure).
โEntrepreneurship: Combining resources to create goods/services.
Economic Models
1. Circular Flow Diagram
โMarkets for Goods/Services: Firms sell, households buy.
โMarkets for Factors of Production: Households sell, firms buy.
2. Production Possibilities Frontier (PPF)
โDefinition: Shows all possible combinations of goods/services an economy can
produce.
โKey Assumptions: Full employment of resources, given technology.
โEfficiency: Achieved when no more of one good can be produced without less of
another.
โInefficiency: Points inside the PPF (e.g., unused or misallocated resources).
Mathematical Concepts
