I believe the answer is: scarcity and opportunity costs
A concert tend to happen on unpredicatble time, which make it considered to be scarce among fans. When we are forced to choose between going to concert or study, we would be forced to weigh the opportunity cost that arise when we sacrifice a certain option to pursue another, and choose the activity that give us the most benefit.
The answer to this question is <span>syncretism
In </span><span>syncretism, two religions or more will blend in together to form a new religion due to contact or new relationships that rise between each cultures where the religions came from. . </span><span>for </span>example<span>, Gnosticism (a religious system that created from the combination of elements from the Oriental mysterious religions</span>
I believe there are only 3 members.
Advantage on the left and disadvantage in the right hope this helps :)
