Role of Prices in Decision Making

Simplification in Economic Models: A Feature, Not a Bug

Forms of Economic Models

An economist is tasked with creating a model to explain a recent, sharp increase in the price of concert tickets for a popular band. They begin by gathering extensive data: the exact seating capacity of every venue on the tour, the average income of residents in each host city, the band's social media follower count, and the daily price of gasoline in those cities. Based on the fundamental process of building an economic model, what is the primary issue with this initial approach?

An economist is building a model to understand the market for a new brand of noise-canceling headphones. Arrange the following steps in the logical order they would follow to construct this economic model.

Modeling a City's Traffic Policy

Deconstructing a Simple Market Scenario

The Foundational Assumption in Economic Modeling

When constructing an economic model, the primary goal of the step where one studies how the outcome changes when variables are altered is to confirm that the initial assumptions of the model were correct.

Match each component of the economic model-building process with its primary purpose.

An economist is building a model to predict how a significant increase in the price of coffee beans will affect the number of cups of coffee sold by a local café. To isolate the impact of this single price change, which of the following assumptions about behavior is the most essential foundation for the model?

In the final step of building an economic model, an economist studies how the outcome changes when a specific condition is altered. The primary goal of this step is not to test the model's accuracy against real-world data, but to generate new ______ about the economic problem being studied.

Evaluating Competing Economic Models

Critiquing a Model's Foundation

An economist is developing a new model to understand how a sudden increase in the price of coffee beans affects consumer purchasing habits at local cafes. Arrange the fundamental steps they would take to construct this model in the correct logical order.

An economist is developing a model to understand the market for rental apartments in a city. The model is built on the idea that landlords will always try to rent their properties for the highest price the market will bear, while potential tenants will seek the lowest possible rent for a suitable apartment. The model incorporates data on the number of available apartments and the number of people looking for a rental. The goal is to see if these interactions lead to a point where the average rent becomes stable. In this model-building process, what is the foundational assumption about behavior?

Designing a Model for Urban Development

An economist is building a model to understand how a new city-wide minimum wage law might affect hiring at local restaurants. The model begins with the assumption that restaurant owners seek to maximize their profits. What is the next logical step in the construction of this model to determine its potential outcomes?

Analyzing a Farmer's Decision Model

Once an economic model successfully identifies an equilibrium outcome, such as a stable market price for a product, the model's primary purpose has been achieved and the process is considered complete.

An economist is building a model to understand the market for used textbooks at the start of a semester. Match each component of their model-building process (the term) with its corresponding description from the scenario (the definition).

An economist develops a model to understand the market for avocados. The model is based on two main ideas: 1) consumers will want to buy more avocados at lower prices, and 2) farmers will want to sell more avocados at higher prices. The model successfully identifies an 'equilibrium price' where the amount consumers want to buy equals the amount farmers want to sell. What is the most valuable next step in using this model for economic inquiry?

Evaluating a Flawed Modeling Process

Developing Economic Skills Through Model Creation

Assessing an Economic Model by Comparing Predictions to Data