If the company produces less of a product than the public wants, the 'law of supply and demand' says that the company can charge more for the product.
Doctors are 'in short supply'. [=there are not enough doctors]
The state is trying to disrupt the 'supply' of illegal drugs.
(..) Dialogue: Marked=..,Default,NTP,!Effect,No, thanks, Tom.\Nl'm on official Hogwarts business. Dialogue: Marked=..,Default,NTP,!Effect,Just helping young Harry here\Nbuy his school supplies. Dialogue: Marked=..,Default,NTP,!Effect,Bless my soul.\Nlt's Harry Potter! (..)2001 Harry Potter and the Sorcerer's Stone