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Three Key Economic Ideas definitions

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  • Rationality
    Assumes individuals and firms aim to do their best with available resources, avoiding self-destructive choices.
  • Economic Incentives
    Opportunities or rewards that motivate people to adjust their behavior for personal benefit.
  • Marginal Analysis
    Decision-making process focused on evaluating the impact of one additional unit of an activity.
  • Marginal Benefit
    Additional satisfaction or happiness gained from consuming one more unit of a good or service.
  • Marginal Cost
    Extra cost, not limited to money, incurred from producing or consuming one more unit of something.
  • Optimum Consumption
    Point where the extra satisfaction from consumption equals the extra cost, maximizing personal benefit.
  • Allocative Efficiency
    Situation where resources are distributed so that marginal benefit equals marginal cost across society.
  • Subjectivity
    Variation in preferences and satisfaction levels, leading to different optimal choices for each individual.
  • Graph
    Visual tool using lines and colors to illustrate relationships between economic variables, aiding understanding.
  • Opportunity
    Alternative or option that can be exploited to improve one’s situation, often in response to incentives.
  • Satisfaction
    Level of happiness or utility derived from consuming goods or services, often measured incrementally.
  • Input
    Resources such as time, money, or effort used in the production or consumption process.
  • Output
    Resulting goods or services produced from utilizing inputs in a decision-making process.
  • Waste
    Unused or inefficiently used resources that do not contribute to desired outcomes.
  • Profit Maximization
    Goal of achieving the highest possible difference between total revenue and total cost in business decisions.