Economists build models to identify relationships between variables and thus help them predict the effects of changes in some variables on others. Identify the economic model-building process by selecting the appropriate labels from the dropdown menus in the table below.
Step 1 Impose complications
Step 2 Model development
Step 3 Problem identification
Select variables
Testing a theory
In order to be useful, models require___assumptions.

See explanation

Explanation:

Based on the information that's given above, the economic model-building process will be:

Step 1: Problem identification

Step 2: Model development

Step 3: Testing a theory

An economic model simply means a simplified version of reality which enables Economist to be able to observe, and make forecast with regards to economic behavior.

Lastly, in order to be useful, models require (simplifying) assumptions.

i believe the answer is: streets and roads

public property refers to the property that can be used by all legal citizens in a certain country. the public property was created and maintain using the government budget that allocated specifically for it. the budget itself come from the citizen's income tax payment.

answer///supply is elastic, and demand is inelastic;