Google

The cost of any action must account for the alternatives that are sacrificed. In general, if choosing to do action A prevents you from doing action B, then the inability to do B is considered a part of the cost of doing A. This cost, which arises from forgoing the opportunity to do B, is known as the opportunity cost.

Opportunity Cost

This example demonstrates how to make a rational choice between alternatives, such as attending a concert or babysitting. The process involves quantifying all costs (including subjective effort) and benefits to find the option with the highest net benefit, or pay-off. If the concert provides the greatest pay-off, with babysitting being the second-best option, the decision is to attend the concert. While people may not use explicit numbers in reality, this method of weighing feelings against monetary costs represents an economic model of behavior. This specific scenario serves as a practical illustration of three core economic concepts: opportunity cost, economic cost, and economic rent.

Comparing Alternatives in Decision-Making (Concert vs. Babysitting)

This example presents a decision-making scenario for a taxi driver in Melbourne. The driver earns \A$50 for a day of work. They have the option to buy a ticket to the Australian Open for \A$40. Being a tennis enthusiast, the driver personally values the experience of attending the event at \A$100. This scenario provides a practical application for calculating economic concepts like opportunity cost, economic cost, and economic rent to determine the most beneficial course of action.

Decision-Making for a Taxi Driver (Australian Open vs. Work)

This scenario presents a choice between two mutually exclusive activities occurring at the same time: attending a theatre concert with a \$25 admission fee (Option A), or going to a nearby park concert that is free of charge (Option B). This example is used to analyze economic decision-making by highlighting how to evaluate an option with a direct monetary cost against an alternative whose cost is the forgone enjoyment, which represents the opportunity cost.

Choosing Between a Paid Theatre Concert and a Free Park Concert

In economics, a good is considered scarce if it is both valued by people and has an opportunity cost associated with obtaining more of it. This means that to acquire an additional unit of a scarce good, something else of value must be given up.

Scarcity

When a person makes a choice from several available alternatives, the reservation option is their next best alternative. It is also commonly referred to as a fallback option.

Reservation Option

You have a free ticket to a concert tonight which you value at $50. You could, instead, work a shift at your job and earn $70, or you could babysit for a neighbor and earn $40. Assuming these are your only three options and you can only choose one, what is the opportunity cost of attending the concert?

Based on the scenario below, break down the components of Maria's decision. Specifically, identify the opportunity cost if she chooses to accept the internship and justify why the other options are or are not part of that specific cost.

Analyzing a Summer Decision

Evaluate the following statement: A person has three mutually exclusive options for their evening: 1) Go to a concert they value at $50, 2) Work a shift and earn $80, or 3) Read a book they value at $20. If they decide to work the shift, their opportunity cost is $70, representing the sum of the values of the concert ($50) and the book ($20) that they gave up. True or False?

For each economic decision described below, match it with the correct statement of its opportunity cost.

A friend states, 'The cost of me going to a football game last weekend was just the $75 I paid for the ticket.' From an economic standpoint, critique this statement. Explain why this view of 'cost' is incomplete. What critical piece of information is missing to determine the full cost of your friend's decision? Illustrate your explanation with a clear, hypothetical example of what the full cost might have been.

Analyzing the True Cost of a Decision

A student has two hours of free time and is considering three mutually exclusive activities: 1) watching a movie, which they value at $15; 2) going for a run, which they value at $10; or 3) reading a book, which they value at $5. If the student chooses to watch the movie, what is their opportunity cost? Explain your reasoning based on the definition of opportunity cost.

Explaining Opportunity Cost

A student has three mutually exclusive options for their Saturday afternoon: they can work a 4-hour shift at the campus library for $15 per hour, go to a movie with friends which they value at $40, or take a paid online survey that will earn them a total of $50. If the student chooses to work at the library, the opportunity cost of this decision is $____.

An individual has decided to spend their Saturday afternoon working a part-time job. To correctly identify the opportunity cost of this decision, they must follow a logical process. Arrange the following steps into the correct sequence.

A baker is deciding how to use a fixed amount of flour. After analyzing the options, they decide to bake artisanal bread. Based on the details provided in the case study, what is the opportunity cost of this decision? Explain your reasoning.

The Baker's Dilemma

Alex is deciding how to spend their Friday night. They can either go to a movie, for which a ticket costs $12 and which they value at $30, or they can work a tutoring session and earn $40. These are Alex's only two options. What is the opportunity cost of choosing to go to the movie?

The primary distinction between economic profit and accounting profit lies in the costs they consider. Accounting profit subtracts only explicit, out-of-pocket costs from total revenue. In contrast, economic profit subtracts both explicit costs and implicit (opportunity) costs, such as the foregone salary of an owner or the potential return on invested capital. Consequently, a firm can have a positive accounting profit while having zero or even negative economic profit, making economic profit a more comprehensive measure of a firm's true performance.

Economic Profit vs. Accounting Profit

Decision-making under scarcity is a central problem in economics, arising because we have limited means to achieve our objectives. This process often involves choosing between several alternative courses of action that are mutually exclusive, meaning only one can be chosen. Economists model these scenarios by first identifying all feasible actions and then evaluating which action is best according to a given objective. A key element of this process is understanding opportunity costs, which represent the unavoidable trade-offs inherent in scarcity: choosing more of one thing necessarily means having less of something else.

Decision making under scarcity

Shareholders, as the owners of a firm, will typically only be willing to invest their capital if the potential return is at least as great as what they could earn from their next best investment alternative. This principle drives the need for a firm to generate sufficient profits to remain attractive to its investors.

Shareholder Investment Principle

The economic cost of an action represents the total sacrifice involved in making a choice. It is defined as the sum of two components: the direct costs of the action and its opportunity cost.

Economic Cost

In a work-leisure model, the wage rate is equivalent to the opportunity cost of an hour of free time. This is because the wage quantifies the amount of consumption an individual forgoes by choosing an hour of leisure instead of working. For instance, with a wage of €30 per hour, the opportunity cost of one hour of free time is €30 in potential consumption.

Wage as the Opportunity Cost of Free Time

This example introduces Karim, a recent Business Studies graduate who has moved to Madrid and can expect to earn a wage of €30 per hour. He faces a classic work-leisure trade-off: he must decide how many hours to work. His choice involves balancing the need for income, which would allow him to afford a better apartment and cover living expenses, against the desire for free time to socialize and explore the city. This scenario serves as a case study for analyzing individual labor supply decisions.

Karim's Work-Leisure Decision in Madrid

Economic rent is the surplus an individual gains from a chosen action compared to their next best alternative, also known as their reservation option. It is calculated as the difference between the net benefit (which can be monetary or non-monetary) from the chosen action and the net benefit from the reservation option.

Learn Before

Related