Economists make assumptions to

A) minimize the number of experiments that yield no useful data.
B) develop models when the scientific method cannot be used.
C) provide issues for political discussion.
D) simplify the complex world and make it easier to understand.

Assumptions

Premises or conditions accepted as true without proof, used as the basis for reasoning, discussion, or calculation.

Simplify

The process of making something less complex or easier to understand by reducing it to its basic components.

Scientific Method

A systematic and logical approach to discovering how things in the universe work, involving observation, hypothesis formulation, experimentation, and conclusion drawing.