2001年-ECB欧洲央行_Revisions_to_quarterly_national_accounts_data_for_the_euro_area_3页_143kb

报告摘要

Box 4: Revisions to Quarterly National Accounts Data for the Euro Area

核心内容

Eurostat regularly revises the quarterly national accounts data for the euro area, which enhances the reliability of these estimates. However, this process also highlights the need for caution when interpreting data for recent quarters. The revisions are influenced by several factors, including the availability of data from individual countries, the expansion of geographical coverage, the use of new information sources, and the updating of seasonal and working day adjustment factors. These revisions can affect both the overall GDP and its components.

主要观点

Revisions are common and necessary: Quarterly national accounts data for the euro area are subject to revisions, which improve their accuracy over time.
Sources of revisions:
- Some countries do not yet publish quarterly data, so Eurostat uses annual data.
- Geographical coverage increases with time.
- Information sets used for compiling national accounts expand, leading to revisions.
- Seasonal adjustment factors are updated, affecting published numbers.
Impact on GDP and its components:
- Revisions to GDP growth are generally small, averaging 0.2 percentage points since 1999 Q1.
- Revisions for GDP components are larger, reflecting lower data reliability and more variability in the underlying data.
No systematic bias: The number and size of upward and downward revisions are balanced, indicating no specific bias in GDP growth estimates.
Future improvements: As more countries comply with the EMU Action Plan, the accuracy of national accounts data is expected to improve further.

关键信息

修订幅度（百分比点）

指标	2000 Q1	2000 Q2	2000 Q3	2000 Q4	2001 Q1	平均增长	平均绝对修订	最大修订
GDP	0.2	-0.1	-0.1	-0.1	0.0	0.8	0.2	5/3
私人消费	0.6	-0.1	-0.2	-0.1	0.1	0.6	0.2	4/4
政府消费	-0.1	0.3	-0.1	-0.1	0.0	0.4	0.1	2/5
固定资本形成	-0.5	0.7	-0.4	-0.2	0.6	0.9	0.6	5/3
出口	-0.3	-1.2	-0.1	-0.4	0.0	2.3	0.8	4/4
进口	-0.6	-1.6	-1.3	-0.7	0.3	2.0	1.0	5/4
净贸易	-0.1	0.2	0.4	0.1	-0.1	0.2	0.2	6/3
库存变动	0.2	-0.4	-0.3	-0.1	0.0	0.1	0.3	2/6

修订趋势

近期修订较小：自1999年第一季度以来，GDP增长的平均修订幅度为0.2个百分点，而2000年第四季度至2001年第一季度的修订幅度在0至0.1个百分点之间。
地理覆盖提升：近年来，地理覆盖范围提高，第一估计的覆盖率为80%，第二估计为95%。
方法改进：自1999年起，ESA 95方法的实施使GDP数据的修订幅度逐渐减小。
各组成部分的修订差异：
- 私人消费修订幅度较小，通常低于0.2个百分点。
- 固定资本形成修订幅度平均为0.6个百分点。
- 出口和进口的修订幅度更大，分别为0.8和1.0个百分点。
- 库存变动的修订幅度也较为显著，通常在0.2至0.4个百分点之间。