Data Revision
Even after they have been published, some official statistics may be revised. Policy-makers may need preliminary statistics quickly for decision-making purposes, but eventually it is important to publish the best available information, so official statistics are often published in several 'vintages'.
In order to understand the accuracy of economic data and the possible impact of data errors on macroeconomic decision-making, the Federal Reserve Bank of Philadelphia has published a datasetthat records both initial real-time data estimates, and subsequent data revisions, for a large number of macroeconomic series. A similar dataset for Europe has been developed by the Euro-Area Business Cycle Network.
Read more about this topic: Official Statistics
Famous quotes containing the word data:
“To write it, it took three months; to conceive it three minutes; to collect the data in it—all my life.”
—F. Scott Fitzgerald (1896–1940)