"The sales index of a house is a indicator of measurement of a regional or national house -based sales market. This index is based on the number of houses that have been signed but have not yet completed. It is usually updated once a month to reflect the current sales trend and market demand. The index can help real estate industry, government and investors understand the current situation and trend of the real estate market, thereby formulating relevant policies and investment decisions.

The marketing index of the house is a very important indicator because it can predict the future housing sales. When the sales index of the house rises, this means that more people are signing a house purchase contract, which may indicate that the sales volume will increase in the next few months. On the contrary, if the sales index of a house signing is decreased, this may indicate that the sales volume may be reduced in the next few months. Therefore, this index is one of the important indicators of the real estate market forecast.

The sales index of the house can also help analyze the economic conditions of the region or the country. For example, if a house signed sales index continues to decline in one region or country, this may indicate that the economy is going downhill and people's purchasing power is weakening. On the contrary, if the market signing index continues to rise in a region or country, this may indicate that the economy is growing and people's purchasing power is increasing.

In short, the sub -sales index is a very useful indicator that can help people understand the status and trend of the real estate market, and predict future sales. It can also help people understand the economic conditions of the region or country. For real estate operators, governments, and investors, understanding of the contracting index is very important for formulating relevant policies and investment decisions. "