There’s a risk that scalpers establish a short-term monopoly over a market. For example, say scalpers buy all of a particular model of remote control car - the

There’s a risk that scalpers establish a short-term monopoly over a market. For example, say scalpers buy all of a particular model of remote control car - they can now dictate the selling price, without adding any value to the market. But of course, the opposite argument is that people will then buy competing remote control cars and the scalpers will have to reduce their prices. Thus they are merely being entrepreneurial and finding an opportunity for arbitrage. This is one of those timeless debates with no answers. I’m sure Ancient Egypt had scalpers, and people wanted to ban them.