What is the effect called when something is greater in value because it is desired by many?

For example in a school there is a girl liked/desired by many and thus the value of possessing/knowing her is thus greater. or:For example in a school

For example in a school there is a girl liked/desired by many and thus the value of possessing/knowing her is thus greater.

or:For example in a school there is a girl liked/desired by many and thus the value of possessing/knowing her is thus greater.

or:popularitydemandfamewww.thesaurus.com/browse/popularity?s=t

Tags: