Um... ‘supply’... ‘demand’ ring a bell?
Cost to make or get an object has no bearing - except for the happiness of the maker/fetcher.
>>as well as quantity manipulation, <<
Read my ENTIRE quote:
“...as well as quantity manipulation.”
Does “quantity” vs. “quantity demanded” ruing a bell?
Probably not as most people are dunces when it comes to economics.
If you don’t know the difference then you are not able to discuss economics intelligently.