Why do we always emphasize anti-monopoly and trust cartels, but railways and oil are still monopoly industries?

Anti-monopoly is an act of prohibiting monopoly and trade restrictions.

Monopoly: it mainly refers to the market state of independent possession and no competition, that is, an operator or a consortium of operators occupies the market of a certain field or industry, thus eliminating and restricting market competition and realizing its exclusive control and dominance over the market.

There is no general definition of monopoly in the monopoly laws of various countries and regions.

Trust monopoly is the product of free competition of capitalism.

It is generally believed that the basic reason of monopoly is the entry barrier, that is, the monopolist can maintain its position as the sole seller in the market because other enterprises cannot enter the market and compete with it. There are three reasons for the barriers to entry of monopoly:

Resource monopoly: key resources are owned by one enterprise.

Government creates monopoly: the government gives enterprises the exclusive right to produce a certain product or service.

Natural monopoly: the production cost is that one producer is more efficient than a large number of producers.

In China, railways, petroleum, salt making and other industries are related to the lifeline of the country, so the government monopolizes them.