One Reason That Economists Make Assumptions When Designing Models Is

question 159

Multiple Choice

One reason that economists make assumptions when designing models is to

• A) exclude variables that do not add predictive power to the model.
• B) make models more like the real world.
• C) make models more complex.
• D) increase endogenous factors.
• E) ensure that all possible factors are included.

---

Definitions:

Opportunity Costs

The advantages that a person, business, or investor loses by selecting one option instead of another.

Sunk Costs

Past expenses that have already been incurred and cannot be recovered, and therefore should not affect future business decisions.

Fixed Costs

Fixed costs are business expenses that remain constant regardless of the level of production or sales.

Cost Of Capital

The rate of return that a business needs to generate from its investments in order to cover the cost of raising funds, either through debt or equity.