The Principles of Economics. Econ Lecture One.

Decision-Making and the Cost-Benefit Principle

Basis of Decision-Making

• Individuals make choices based on assessing costs and benefits.

• Cost-Benefit Principle Definition:

  • Individuals respond to incentives tied to decisions.

  • Assess the net benefit of making a decision:

  • Benefits versus costs related to a specific action.

  • Aim to select options where benefits exceed costs.

• Non-selfish motivations can also influence decisions, such as a desire to contribute positively to others' experiences.

Application of the Cost-Benefit Principle

Personal Decision-Making Examples

1. Example of Classes:

   • Benefits of Attending Classes:

     • Improved understanding of the material.

     • Opportunity to ask questions directly to the instructor.

     • Additional insights offered by the lecturer beyond slide content.

     • Avoiding procrastination and staying on track with assignments.

   • Costs of Attending Classes:

     • Limited time: attending class means allocating time that could be spent on other activities (sleeping, studying, etc.).

     • Effort involves waking up, preparing, and commuting.

     • Potential discomfort in learning environments (e.g., classroom conditions).

     • Adjusting personal schedules (e.g., rescheduling appointments).

2. Decision-Making Process:

   • Each student implicitly assesses their personal costs and benefits when deciding whether to attend class.

   • Decision made based on whether the perceived benefits outweigh the costs.

3. Willingness to Pay Definition:

   • Definition: Amount a person is willing to give up to either obtain a benefit or avoid a cost.

   • Each benefit or cost can have a different value for each individual based on personal experiences.

   • Example:

     • Better Understanding of Material: Different individuals value this differently.

     • Comfort Avoidance: Willingness to pay to avoid discomfort or inconvenience.

Exploring Economic Surplus

Definition of Economic Surplus

• Economic Surplus Definition:

  • Difference between total benefit and total cost of a decision.

  • Measures how much a decision improves a person's well-being.

Application of Economic Surplus in Decisions

1. Example of Deciding to Drive to Class:

   • Total Benefit = $12.50 (calculated willingness to pay based on individual benefit assessments)

   • Total Cost = $7.25

   • Economic Surplus = Total Benefit - Total Cost = $5.25

2. Coffee Purchase Example:

   • Benefits of Coffee Purchase:

     • Energy boost ($2 value).

     • Warmth ($1 value).

     • Enjoyment ($3 value).

   • Total Benefit of Coffee Purchase:

     • $2 + $1 + $3 = $6

   • Costs of Coffee Purchase:

     • Price of Coffee ($5) + Difficulty of commuting ($0.50).

   • Total Cost of Coffee Purchase:

     • $5 + $0.50 = $5.50

   • Market Decision: Purchase is warranted as total benefit ($6) exceeds total cost ($5.50).

   • Economic Surplus: $6 (benefit) - $5.50 (cost) = $0.50.

Firm's Perspective on Economic Surplus

1. Hiring Scenario:

   • Benefits of Hiring:

     • Estimated worth to firm: $85,000 annually.

     • Cost savings of the job search: $3,000.

   • Total Benefit of Hiring:

     • $85,000 + $3,000 = $88,000

   • Costs of Hiring:

     • Salary requirement: $70,000 and relocation costs of $5,000.

   • Total Cost of Hiring:

     • $70,000 + $5,000 = $75,000

   • Economic Surplus for Firm:

     • $88,000 (benefit) - $75,000 (cost) = $13,000 surplus.

2. Impact of Negotiation on Surplus:

   • If salary increases to $80,000, firm still benefits as they would have $3,000 in surplus.

Voluntary Contracts in Economic Transactions

• All transactions involve voluntary contracts where each party expects benefits at least equal to the costs incurred.

• Economics often misconstrued as purely competitive, but decision-making is voluntary and based on individual assessments to optimize perceived benefits.

Internally Driven Decisions and Broader Framework

1. Assessment of Emotional and Social Costs:

   • Some value metrics are not financially quantifiable but still influence decisions—such as buying coffee for a friend for their happiness or donating clothes for altruistic satisfaction.

Framing Effects Influencing Decision-Making

Framing Effect Definition

• Decisions can be influenced by how they are presented rather than their underlying economic outcomes.

1. Practical Examples of Framing Effects:

   • Sales Pricing:

     • Consumers often react to sale prices by comparing to original prices instead of focusing solely on current costs that determine purchasing behavior.

   • Menu Pricing in Restaurants:

     • High-priced items draw attention, influencing consumers to select higher-value options that seem more reasonable.

   • Subscription Services:

     • Varied pricing structures emphasize the middle tier, guiding consumers away from basic options.

2. Insurance Company CEO Example:

   • Decisions presented as saving jobs versus losing jobs demonstrate how framing affects executive choices regarding cost-cutting strategies.

   • These lead to different decisions due to emotional responses associated with saving versus losing jobs, even when underlying data is identical.

Key Takeaways from Cost-Benefit and Opportunity Cost Principles

1. Evaluate all costs and benefits thoroughly, including monetary, non-monetary, and emotional factors before making decisions.

2. Opt for choices where benefits outbalance costs.

3. Assess personal willingness to pay when considering options lacking clear financial metrics.

4. Be aware of framing effects that may distort decision-making processes, leading to suboptimal choices.

Note: Further discussion on opportunity costs will continue in subsequent lessons.