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2: Choice in a World of Scarcity

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    This chapter will continue our discussion of scarcity and the economic way of thinking by first introducing three critical concepts: opportunity cost, marginal decision making, and diminishing returns. Later, it will consider whether the economic way of thinking accurately describes either how choices are made or how they should be made.

    • 2.1: Introduction to Choice in a World of Scarcity
      "The time at our disposal is limited. There are only twenty-four hours in the day. We have to choose between the different uses to which they may be put. ... Everywhere we turn, if we choose one thing we must relinquish others which, in different circumstances, we would wish not to have relinquished. Scarcity of means to satisfy given ends is an almost ubiquitous condition of human nature. " -Lionel Robbins
    • 2.2: How Individuals Make Choices Based on Their Budget Constraint
      This page explains budget constraints and opportunity costs in consumer decision-making, using the example of Alphonso allocating limited income between alternatives. It emphasizes that true costs include foregone options and outlines mathematical interpretations of these concepts. The page also covers marginal decision-making and diminishing marginal utility, noting that costs can be both monetary and related to lost opportunities.
    • 2.3: The Production Possibilities Frontier and Social Choices
      This page explains the production possibilities frontier (PPF) and its implications of scarcity on production efficiency. It discusses the trade-offs between goods, such as healthcare and education, and concepts like opportunity cost and diminishing returns. The page contrasts productive efficiency, maximally utilizing resources, with allocative efficiency, which focuses on optimal resource distribution based on societal preferences.
    • 2.4: Confronting Objections to the Economic Approach
      This page examines objections to the economic decision-making approach, asserting that economic principles remain valuable despite individuals not always acting rationally. It distinguishes between positive and normative statements and argues for the coexistence of self-interest and altruism in economic behavior.
    • 2.5: Key Terms
      This page outlines essential economic terms, including allocative and productive efficiency for optimal resource and production use, budget constraints, and opportunity sets for consumption. It emphasizes comparative advantage for cost-effective production and covers principles such as the invisible hand, diminishing marginal utility, and opportunity cost.
    • 2.6: Key Concepts and Summary
      This page sums up how individuals make choices under budget constraints, focusing on scarcity, trade-offs, and opportunity costs. It introduces marginal analysis and the law of diminishing marginal utility. The production possibilities frontier (PPF) illustrates resource allocation choices and highlights efficiencies and comparative advantage in trade.
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