If this market is completely competitive, such as a vegetable market now, anyone can sell vegetables. As long as you buy a place to sell vegetables, you can sell vegetables. There is no threshold for anyone to do it. Then this market is relatively free, without my influence on the market, because others sell a radish for two dollars and I sell it for four dollars, then I will definitely not sell it, because consumers will definitely choose a cheaper price under the same quality, so I am completely free.
If the nearby residents only have such a large vegetable market and all the other varieties are incomplete, I have bought 60% of the stalls now. Others are also on a small scale. I have a market share of 60%, and all their odds and ends add up to just over 30%. Then I will definitely have an impact on the market, because the goods of those retail investors are limited, and only I can provide you with the most complete variety and adequate supply of vegetables. One day, it suddenly occurred to me that I was going to raise the price. I raised a radish to 2.5 yuan, which may be sold elsewhere, but it is sold elsewhere.
This example is to tell everyone that if the market is monopolized, the pricing will not be in the hands of consumers, and consumers will no longer be able to cause great constraints on enterprises, because you can't meet your normal needs through other market providers. You can't avoid it. You have to choose the service provided by such a monopolist, and its price has increased. You have to accept it whether you like it or not, because you have no better choice.