Anti price gouging laws. If you want to learn why (and a little economics) See page 22. If not I have a quote for you from the late Murray Rothbard, one that I have posted here several times in the past. But it never gets old.
It is no crime to be ignorant of economics, it is, after all, a specialized discipline and one that most people consider a ‘dismal science.’ But it is totally irresponsible to have a loud and vociferous opinion on economic subjects while remaining in this state of ignorance.”—Murray Rothbard