Cement industry index is a quantitative application based on data. It is a relative figure that directly reflects the development of cement industry, which can reflect the price and inventory, prosperity and health, and even the regional industrial investment environment. In addition, combined with other data information, we can predict the profit level of the industry, predict the economic benefits of major companies, predict the price trend of cement upstream and downstream related products, and even have a reference role for macroeconomic operation. From a deeper level, by grasping the changing law of cement price, it can be used as one of the important basis for industry decision-making to guide enterprise pricing decision-making.

The compilation of cement price index has four characteristics: representativeness, universality, accuracy and timeliness. __

Representativeness: The price data adopts the transaction price of bulk P.O42.5 cement market collected by China Cement Net Market Center, which can represent the change of cement price market. __

Extensiveness: the price collection covers more than 80% of the consumer market, 3 1 province and city, 159 prefecture-level administrative regions and 148 brands.

Accuracy: The cement price index is calculated by chain-pull formula, which has two levels of weights-the weight of prefecture-level administrative regions (based on the consumption of ready-mixed concrete) and the brand weight (based on market share), and the brand weight is dynamically adjusted according to market changes.

Real-time: the index of each working day is released on the next working day, reflecting the market situation in real time. The base period of the index is 2009, and the price level of the base period is 100 point. (The price in 2022 is about 20% lower than the average level in 2009) _ _

20 14. 1 to 20 16.2 Monthly year-on-year changes in the cement price index: _ July is often the month when the cement price drops the most, while the price tends to rise in the fourth quarter, and the fluctuation range can be well monitored. In the first two months of 2022, the price of cement fell as much as that of 202 1, but the range was narrower than that of 202 1. __

2.2 Cement boom index _ _

Cement prosperity index consists of three indexes, namely, consistent index, leading index and lagging index. The picture shows the trend chart of cement industry prosperity index during the Twelfth Five-Year Plan period. __

2.2. 1 the role of cement prosperity index _ _

The consistency index of prosperity is used to reflect the direction and degree of prosperity change in cement industry; The prosperity leading index can predict the prosperity trend in advance; Boom lag index can verify boom operation. The most important thing is the consistent index and the leading index. The consistency index helps enterprises inside and outside the industry intuitively understand the industry boom situation and trend in 2022 and track the long-term boom changes of the industry. The prediction function of leading index can provide guidance for enterprises to formulate production and marketing strategies (expansion or contraction) in advance, and can also correct deviations for industry development and prevent the industry from being too cold or too hot. The prosperity change of cement market can directly and truly reflect the domestic macro-economic operation.