The Forecast and Analysis Report on Consumer Demand and Market Competition Input of China's Jewelry Industry from 2015 to 2020 released by Prospective Industry Research Institute shows that the market growth rate of China's jewelry industry has slowed down obviously since 20 1 13. From about 50% of 20 1 1 to about 9.83% of 20 13. However, the market share of leading enterprises in jewelry industry is relatively stable. Since 2003, Lao Fengxiang's market share has been maintained at around 9.5%, and Chow Tai Fook's market share has also been maintained at around 8%-9% in recent years. It can be seen that the sales scale of these leading enterprises in recent years is mainly accompanied by the synchronous growth of the industry, rather than the expansion of market share. It can be inferred that there is limited room for improving the concentration of leading enterprises in the middle and high-end jewelry market in the future. However, with the enhancement of people's consumption power and brand awareness, the middle and high-grade jewelry market will gain a broader development space than the low-grade jewelry market.

Market concentration is a basic concept and an important index to measure the market structure, which reflects the degree of competition and monopoly among enterprises in the industry. Generally, it is expressed by the output percentage or sales share of the top enterprises in a specific industry, that is, CRn(CR is the abbreviation of concentration, indicating concentration, and N is the number of the top enterprises in the market). According to Bain's classification of market concentration (the first person who used market concentration analysis to study the degree of monopoly and competition in the industry), Cr4 >；; 30 or CR8 & gt40% of the market is oligopolistic in different degrees, and vice versa.

From the trend chart of market concentration (CR4, CR8) in recent years, it is an increasing trend from 2005 to 2007. Due to the hot market, many small enterprises are trying to expand their business and occupy the market. From 2009 to 20 12, the market concentration of China's jewelry industry decreased year by year. In 20 12, the market still showed oligopoly structure, but in 20 13, the concentration began to rise again. It is expected that the situation of "big industry and small company" in the domestic jewelry retail industry will continue to be maintained, the development prospect of the industry is good, and the leading enterprises will continue to maintain high growth.