Abstract Details
Activity Number:
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675
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Type:
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Topic Contributed
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Date/Time:
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Thursday, August 8, 2013 : 10:30 AM to 12:20 PM
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Sponsor:
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Business and Economic Statistics Section
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Abstract - #308572 |
Title:
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Statistical Procedures for Reconciling Time Series of Large Systems of Accounts Subject to Low-Frequency Benchmarks
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Author(s):
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Baoline Chen*+ and Tommaso Di Fonzo and Marco Marini
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Companies:
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Bureau of Economic Analysis and The National Institute for Statistics (Istat) and International Monetary Fund
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Keywords:
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Benchmarking ;
Reconciliation ;
Temporal and Contemporaneous Constraints
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Abstract:
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In this paper we study statistical procedures to reconcile large systems of annual time series subject to low-frequency benchmarks (e.g. available every five years). Our aim is to reconcile the preliminary levels of the series such that they (i) are consistent with the low-frequency benchmarks available, (ii) fulfill all the accounting relationships for any given year, and (iii) show movements that are as close as possible to the preliminary information. We propose to solve this kind of problems using a simultaneous least-squares procedure based on the proportional first difference (PFD) criterion, a movement preservation principle proposed by Denton (1971). However, we suggest that a pure proportional adjustment is adopted for series with breaks and high volatility that deteriorate the meaningfulness of growth rates. We apply this procedure for reconciling the 1998-2002 U.S. annual input-output accounts, GDP-by-industry accounts and expenditure-basedGDP, subject to the 1997 and 2002 quinquennial benchmarks and all contemporaneous constraints of the input-output accounts for the in-between years.
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