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Enhancements in the 2003 Scottish Input-Output Tables: Methodological and Systematic Changes

This document outlines significant advancements made in the Scottish Input-Output (IO) tables as of 2003, detailing the transition to a new system that incorporates a combined Use matrix and manual balancing techniques. It emphasizes reduced reliance on RAS with improvements in IT efficiency, flexibility, and a rewritten tax and margins system. The current status indicates that the system has been nearly fully operational, enhancing the accuracy of symmetric tables. Future developments will focus on creating consistent time series data and revising policies for the IO framework.

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Enhancements in the 2003 Scottish Input-Output Tables: Methodological and Systematic Changes

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  1. Initial 2003 Scottish Input-Output Tables

  2. Changes in the New System • Producing a Combined Use matrix • Balancing at Purchasers’ Prices • Manual Balancing – more focussed • Less Reliance on RAS

  3. Changes in the New IO System • More Efficient IT system • Flexible System • Tax and Margins System rewritten

  4. Current Position • System has now been almost fully run • Initial 2003 balance produced • Manual Balancing has been heavily used in this process • Coding to produce the symmetric tables has still to be incorporated

  5. Methodology Changes • GCS Imports data • PRODCOM data imputed for missing values • 2003 Purchasers Inquiry • More use of ABI data • Combined Tables • Manual Balancing

  6. RASing Process • Manual balance adjusts total intermediate consumption in USE table (Input of industries) • Adjust Make table to match USE (Output of industries) • Increases to Make subtracted from Imports to keep balanced commodities • 9 IOCs excluded from Make adjustments because imports less than required increase in Make • Adjusted Supply totals provide desired column and row totals for USE table

  7. Future developments • Production of Consistent Time Series of Input-Output tables. • Work will begin on a detailed revisions policy for Input-Output • Tailor-made responses to queries

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