It is true. I learned about this as well.
The main reason why it would benefit a company to restrict its supply of a product to consumers when consumer demand for the product is high is because the prices are higher.
Answer:
stable civilizations most of the time don't need to worry about things like poverty, or sickness. those are things unstable civilizations do need to worry about. When a civilization is stable, they have more time on their hands to create innovations and work. Meanwhile unstable civilizations will need to be worrying about all the things they need to fix.
Explanation:
Good luck :)