16, National Bureau of Statistics has published the cities housing prices data. China Information News reporter interviewed the head of National Bureau of City Secretary.
Q: Why should a new
A: The housing problems of the people's livelihood, not only economic problems, it is important to people's livelihood. National Bureau of Statistics housing attaches great importance to the work, to meet the new situation, to meet new needs, in-depth research, solicit opinions and suggestions all sectors of society on the basis of urban and rural areas in the Ministry of Construction of housing and related urban real estate management sector support and coordination with the existing methods of price statistics system reform, decided in January 2011 began to implement a new system of price statistics methods. Promote the reform of housing statistics, the implementation of the
Q: Compared with the original program, the
A: The main elements of reform in the following four areas:
(a) data collection methods to adjust. Municipalities, provincial capitals, autonomous regions and capital cities (excluding Lhasa City), separately listed cities and other 35 cities, new residential sales price directly with local real estate management web sign data, without further investigation; temporarily unable to obtain network Check the data of other cities, new residential sales price statistics system based on statistical reports collected by real estate development projects (real estate) the classification of trading area and the amount of data calculation.
(b) of the survey indicators of adjustment. Housing sales price index price index for new home sales and second-hand housing sales price index. Under the protection of new residential housing and commercial residential categories. Second-hand goods class and residential housing are located 90 square meters, 90-144 square meters, 144 square meters more than three basic categories.
(c) the method of computation of the adjustment. New housing price index on a monthly calculation method to adjust for the classification of different sizes according to project the average price method. Rumsfeld used the chain internationally accepted formula to 2010 as the base period fixed base price index.
(d) the manner and timing of data release adjustment. Published data was adjusted to 18 months, the time delay than the original release about one week.
asked: Compared with the direct reporting of data, signed data network What are the advantages?
A: The basic data sources of the price adjustment is an important part of statistical reform. using sample data. The reason for this adjustment, there are three main reasons. First, the data are complete. Net signed data cover all newly built commercial housing transactions. Second, the information complete. Net signed data contains the address, floor, details such as price and amount of information to help price index calculations. The third is for convenience. Through continuous improvement and perfection, the net sign of real estate management and use of data management has accumulated a wealth of experience, data extraction easier.
Q: net signed data containing detailed personal information, the process of calculating the price index, the statistics department security measures taken?
A: The network signed by National Bureau of Statistics data to calculate the main purpose of price index. Net buyers to sign even though the data contain detailed personal information, but the statistics department signed data networks currently being used mainly housing, basic information, only the project name, project address, block number, the total number of layers, where the number of storeys, building structure , closing price (contract amount), construction area and the content of contract time, buyers do not involve personal information.
statistics department signed data processing network will strictly enforce the Data processing using single summary to ensure that the signed data using the secure network.
asked: Signed a single city network performance data on the local representation of how urban housing prices?
A: Check the data network in various cities by depending on the number of the actual volume of new residential period. In view of the cities can not be exactly the same volume of new commodity housing, the number of nets will be used to sign the data there are differences. However, due to various cities of the current data record net signed the actual contract value of new residential, so regardless of the amount of data size, thus calculating the price index to reflect local conditions.
order to do this work, in September 2010, National Bureau of Statistics, Ministry of Housing and Urban jointly issued a Office of Rural Development (Housing and Urban Committee, the premises of the Board), Bureau of Statistics, National Bureau of Investigation Team to strengthen ties and cooperation in data sharing, information resources sharing. At present, the relevant urban real estate management department, National Bureau of Investigation Team is in accordance with the uniform requirements and orderly work.
Q: When non-network will have to sign the city to sign the data network?
A: It is understood that all the town has been actively carrying out the appropriate preparatory work. National Bureau of Statistics in the preparation of the Ministry of Housing and Urban Construction in support of urban real estate management and related departments of the positive cooperation of the January total of 53 cities reported a net signed data, as well as 17 cities signed a temporary network data do not have the conditions of use. In the mature one by one principle, the National Bureau of Statistics will gradually expand the network to sign data using the range of the city, and ultimately the 70 cities used in all new residential sales price net signed data.
Q: From the beginning of this reform, the National Bureau of Statistics released the country is no longer housing prices in 70 cities average, What are the main considerations?
A: such a reform, there are three main considerations. First, a set of data mean that, with a simple visual features. But the average value in the sample case of the larger degree of dispersion has some limitations. That is quite different in individual cases, often peak load shifting, smooth out the differences between individuals. For example, one day in winter the temperature in Beijing is 9 degrees above zero, Harbin temperature is minus 15 degrees, the sea temperature is 15 degrees above zero, three cities, the average temperature of zero degrees on the 3, calculate and publish such a mean significance is not great, but also easily lead to unnecessary misunderstanding.
Second, the average is no longer calculated and published, focusing on each city's housing data released, it will help the public to keep abreast of specific changes in city housing prices, but also conducive to better prices for local governments to effectively regulate services.
Again, this is some of the recommendations of experts. If the experts pointed out that the comprehensive concept of the average price index is too vague, and can not correspond to a point in time, and in each quarter (or each month), when large price changes, the calculated average is even less practical significance . Too much emphasis on comprehensive national figures easily lead to misunderstanding, will cover the typical characteristics of each city.
Q: Why is 144 square meters with 90 square meters and set the standard as a basic category?
A: The The documents, from June 1, 2006 onwards, where the new approval, the newly started construction of commodity housing, dwelling area of 90 sq m of housing (including affordable housing) the proportion of area, the total area of development and construction must meet 70% or more.
144 square meters set targets, based on The document states that 1.2 times. all provinces, autonomous regions and municipalities according to the actual circumstances of ordinary housing in the region to enjoy the preferential policies for specific criteria. allows a single set of construction standards for the appropriate size and price fluctuations, but the proportion of floating up above standards shall not exceed 20%.
Q: fixed base price index What is the meaning? How to use the fixed base price index of real estate price trends?
A: This is a technical problem. And the public are often exposed to the same period last year and the chain price index is different from fixed base price index for comparison base remained relatively constant during a given period, the public more familiar with stock index is a fixed base price index. In theory, the fixed base price index number of structural changes in the exclusion of the impact of price changes, simply reflects the price changes.
to better meet all the needs of the Selected as the comparison base in 2010, there are three main considerations: First, with the economic and social development consistent five-year planning period. Second, the basis of 2010 data is more complete and easy to access, easy to operate. Third, with the CPI, PPI fixed base price index consistent comparison of the base to facilitate data analysis and use.
price index compared with the same period last year, house prices in the use of fixed base price index is more easy and intuitive. Assume a fixed base price level of 100, if a monthly house price index higher than 100 a month, said house prices have risen more than the base price. If the fixed base price index for the month of high house prices last month, then the month, house prices rose last month, on the contrary, it shows that last month house prices fell this month. Use of fixed base price index for different contrast can be calculated based on the price index. For example, the March and February of the fixed base price index divided and multiplied by 100, you can get in March than in February of the chain price index. So, you can calculate the price index they need to observe the changes in house prices in different periods.
Q: How to understand the
A: The Because of this investigation are non-comprehensive survey of the size and distribution of the sample is directly related to the underlying data representation, therefore, on the sales price of the underlying data authenticity and accuracy.
Q: Why the delay to the house price data released 18 months later?
A: The Mainly due to the
The official concluded by saying sincerely thank the community for statistical reform housing care and support, welcome to continue their valuable statistical advice and suggestions. We all will listen carefully to questions and criticism of all is justified, evidence-based advice will hold seriously learn from them as to improve the incentive to work continuously to improve the statistical capacity to continuously improve the quality of statistical data, and better serve the scientific development.
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