including a monthly

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Sina Financial News April 8 pm news, the National Bureau of Statistics announced today that from April onwards, announced gross domestic product (GDP), large-scale industrial added value, fixed asset investment and total retail sales of social consumer goods, four statistical indicators of the chain speed. Chain speed is internationally recognized for effective short-term economic trend analysis tools.
chain speed to determine short-term economic trends

more than four indicators, will be 15th of this month's announcement of the economic operation of the data release. National Bureau of Statistics National Accounts Division Pengzhi Long said the reason for choosing these four indicators released first chain speed, and the importance of these indicators,这也就意味着承诺捐助给张妙孩子的捐款已超过了35万元, data availability and seasonality related.
chain speed is adjacent to two contrasting results, the speed compared to same period last year, can reflect the short-term economic change, is internationally recognized for effective short-term economic trend analysis tools. Most developed countries have undertaken major economic indicators on the chain statistics and the seasonally adjusted,ralph lauren pas cher, release the chain statistics, indicators related to quarterly GDP,polo ralph lauren, employment, prices,christian louboutin, finance and other fields.
a long time, most of our monthly and quarterly statistical indicators count only up speed,turn away clients, there is no chain speed. The gaps in the statistical system into question, because there is no sensitive and reflect the ring data is difficult to rapidly changing economic situation.
National Bureau of Statistics from the early 2009 began to organize forces to the chain statistics, research, studies testing two years. Peng Zhilong National Bureau of Statistics National Accounts Division, said the chain statistics in practice,polo femme, constantly improved and perfected. He referred to the gradual establishment of sound work, including a monthly, quarterly statistical survey system and further improve the seasonal adjustment model and software.
It is reported that some indicators of the basic data is the result of the cumulative statistics, yet a true sense of a monthly,approximately 20% of the non-performing loans, quarterly statistical survey system. If the cumulative quarterly GDP accounting method currently used to meet the needs of the chain statistics, the number being inverted by using the cumulative method of calculation of quarterly GDP. The resulting quarterly GDP data is not directly calculated by the original GDP accurate. National Bureau of Statistics is now actively promoting the main index's monthly, quarterly statistical system reform, the calculation speed of the chain to provide high quality on a monthly, quarterly data.
same time,ceinture homme, the seasonal adjustment model and the software also needs to change according to circumstances,Polo pas cher, and continuously test and optimize the model parameters or weights of the corresponding settings.
ring remove seasonal factors than speed

chain speed influenced by seasonal factors, excluding the impact of seasonal adjustment factors, the chain statistical model is the difficulty lies. Zhang, director of Quantitative Economics, Nankai University Cave noted that 'type, seasonal factors will affect the comparability of data between two consecutive periods. As the Spring Festival, Mid-Autumn Festival,polo homme, Dragon Boat Festival is a lunar holiday, the day of the corresponding cross-month calendar, which will also affect the chain mobility rate. >
Industrial Bank funds operations center political commissar, chief economist Lu (column) that because of technical difficulties, the United States a decade after seasonal adjustment model adjustment. Meanwhile, he believes that China's Central Statistical faces than the speed of data accumulation and data consistency problems that may exist before the reform and opening up, and because of incomplete statistical data statistical coverage, methods, data adjusted to bring the issue are not entirely comparable.
solve the above problem, the National Bureau of Statistics put together the four major indicators of the system's historical data, forming a comparable time series, the length of time in 7 years; the same time, the international software used on the basis of seasonally adjusted , consider the season of unique factors, including the Spring Festival, Dragon Boat Festival, Mid-Autumn Festival and other mobile holiday effect, the number of weekly working days from the original 5 days 6 days the system to effect change in the system, leave to bring change and the effects of off-tune and so on, developed new seasonal adjustment software, NBS-SA.
chain speed up rate volatility is greater than

for the upcoming four statistical indicators of the chain speed, Bureau officials and experts said,ceinture, because the objective of the technical characteristics of the decision chain speed will have to go through several revisions, the changes will there be an objective look at the data.
chain speed to go through several revisions, this is one of its characteristics. When the time series in a monthly or quarterly data of any changes will affect the result of seasonal adjustment; time series incorporate the latest in a period of data because the data involved in the calculation of the increase in the ring before the monthly or quarterly or more than the speed or less to change, and that automatically correct the results of the model.
This means that the latest monthly data, in which the history of chain speed data and not the same as previously announced. However, according to seasonally adjusted principles, the latest data from the more recent period of time, the data of the affected large; far from the most recent data period of time, the data are less affected.

period of observation than the speed of the ring. (Wah Yan from Beijing)

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