An economic study of the number of online searches that individuals conduct before selecting a particular item to purchase online presumes that people are interested only in their own satisfaction, pursue their ultimate objectives, and consider every relevant option.

In examining the above decision-making process, the approach that the economist is following can best be described as the one that relies on .

The Rationality Assumption.

Explanation:

The assumption of rationality is the belief that people will choose something which will increase efficiency from a series of decisions; this advantage is prone to interpretation and it can be based on actual economic profit, benefit to society, and a multitude of other things.

Economists often presume reason when interacting with theory and devising mathematical and statistical models to explain behaviour. It is safe to assume in many cases, such as a straightforward supply / demand model, that people will behave on basic moral standards such as a cap on desire to pay.

answer; possession utility;

answer; is the sum of all individual demands curves;