Economics: Scarcity, Trade-offs, and Opportunity Cost

Scarcity and Choice

• Scarcity: limited resources vs unlimited wants.
• Leads to trade-offs and opportunity costs.
• Consumers have limited resources to maximize their wants.
• Utility: the satisfaction from a purchase; measured in utils (or U).

Trade-offs and Opportunity Cost

• Trade-off: give up one thing to obtain something else you desire.
• Opportunity Cost (OC): value of the highest-valued alternative forgone.
• Measured on the same scale as other metrics (e.g., distance, calories, money).
• Unlimited desires can lead to resource depletion over time.
• OC is what you do not receive when making a decision; it applies to consumers, firms, and government.

Utility and Measurement

• Consumers aim to maximize utility from each decision.
• Utility is measured in utils; alternative scales include U or monetary valuation in some analyses.

Consumer Examples (illustrative OC)

• Hamburger vs hot dog: OC of choosing a hamburger is the hot dog not chosen.
• Time with Devin vs Brian: OC of choosing Devin is time with Brian (the forgone option).
• Consumer resources include time and attention; allocation choices have OC implications.

Business Resources and Costs

• Resources: land (natural resources), labor, and capital; all limited.
• Businesses must decide the best allocation of these resources.
• Trade-offs in how to allocate land, labor, and capital to production.
• Production costs: inputs like labor, materials, and manufacturing supplies; these costs affect decision making.

Government and Policy Trade-offs

• Government faces scarcity of resources (e.g., land, labor).
• Policy decisions involve trade-offs in resource allocation.
• Must consider the OC of alternative policies and how production resources are used.
• Policies create value-added vs. the opportunity costs of alternative actions.