MS economy refers to market scale economy, also known as leading effect. This economic form comes from some large enterprises in the market. These enterprises have gained a dominant position in the competition. They can make their own costs lower through large-scale production and sales, even reduce the price of products, and finally achieve the goal of maximizing market share and income. Therefore, MS economy is regarded as a powerful force in the market and often leads the direction of industrial development.

MS economy has certain advantages and disadvantages in economic development. Through large-scale production and sales, large enterprises can gain more profits and market share, and consumers can also enjoy lower prices. However, these enterprises often restrict the development of other competitors, and the lack of competition will lead to less innovation and a single market environment. In addition, due to their influence on the market, these enterprises may have more right to speak in the negotiations, threatening the development of other related enterprises.

Facing the MS economy, the government needs to take measures to protect fair competition in the market. The government should supervise the market to prevent monopolistic behavior. It is an effective policy measure to support small enterprises and encourage large enterprises to innovate and expand their scale through taxation. In addition to the government level, enterprises themselves should constantly improve quality and service, and enhance product competitiveness and market vitality. At the same time, consumers can avoid the monopoly of MS economy and protect the diversification and fair competition of the market by supporting diversified brands and products.