Oligopoly market, also known as oligopoly market, refers to a market organization in which a few manufacturers control the production and sales of products in the whole market. Oligopoly market is considered as a common market organization, and many industries in western countries show the characteristics of oligopoly. For example, the automobile industry, electrical equipment industry and canned food industry in the United States are all controlled by several enterprises.

In addition, this may be related to the different monopoly names in different countries: cartel; Trust; Syndication; Konzern. Of course, there are some differences between them, but it is very important that countries are different. Therefore, the richest people in Russia are oligarchs, and it may be clearer to contact the chaebol in Japan.