The Supply table
The primary purpose of the supply table is to show the goods and services (products) produced by each industry in Scotland along with the supply of commodities through imports. The distinction between industries and commodities is important; individual firms and organisations are classified according to the products they make. If they produce more than one product, they are classified according to whichever product accounts for the largest component part of their output (£). Each industry produces what is termed to be its principal product (shown in the diagonal elements in the table) and many industries also produce a range of other commodities referred to as secondary production (shown in the off-diagonal cells).
The table below shows the supply table for Scotland for 2004. The supply of commodities is presented in the rows while the columns show the industries responsible for the output of these commodities. This table is an aggregate version of the full make matrix, which shows the output of each of the 126 I-O industry groups by each of the 126 I-O commodity groups. The full make matrix is no longer published due to the disclosive nature of the data. However, some information about the levels of supply and market share of each of the 126 industries is available, in summary form, in the supply matrix (available in the downloads section).
The supply table also demonstrates the transition from total domestic output of products at basic prices to total output at purchasers' prices through the addition of distribution margins and taxes less subsidies on products. The transition from domestic output to total supply is made by the addition of imports and their related taxes and margins.
Aggregate Supply Table 2004 (Output at Basic prices and Supply at Purchasers' Prices), £millions
A copy of this table can be found in the downloads section.
Use of the Supply Table
Indicators of the diversity of commodities produced by an industry.
It can be seen in column 3 of the above table that the Manufacturing industry produced £28,619m of its principal product in 2004, accounting for 93 per cent of this industry's total output (£30,922m). The remaining cells within this column reveal levels of secondary production of four main commodity groups: Distribution and Catering (£1,370m); Finance and Business (£786m); Transport and Communications (£121m); and Construction (£17m).
This indicator is presented, at 126-industry detail, in the Supply table as 'Principal Products as a percentage of Total Industry Output'. This statistic shows that, for the substantial majority of industries (82%) in Scotland in 2004, secondary production of goods and services accounted for less than 20 per cent of their total output.
Indicators of market share
Conversely, to look at the industries that produce Manufacturing commodities, we consider row 3 of the above table. We find that the manufacturing industry is responsible for the production of virtually all manufacturing commodities (99.8%). This is an indicator of market share and is presented, at 126-industry detail, in the supply table as 'Principal Products as a percentage of Total Output of Products'.