This might already be known, but there are peoples (some call them scalpers) that buy entire stocks of a specific product (e.g.:a specific graphics card model, etc) and then sell them for outrageous price (e.g.:if the original price of a specific model was 500$ then they might sell it for 2K$ or even in worse cases, 10K+).
Now I know this is just partially based on how economics works (supply, demand, etc) so I'm not trying to delve in the semantics of why they do that, or if this is viable longterm, etc. What I'm wondering is if this is legal (or not) in any country?
I tried to look up laws around this, but I cannot find a law that could fit. Monopoly on merchandise? Blockage? I don't know a better term for this, either.