EN/SUT/2014/Pres/22
Expert group on Supply
and Use tables
Mauritius, June ‘14
Chapter 2:
The use of commodity flow: consistency and missing values
Comments
THE SOUTH AFRICA I KNOW, THE HOME I UNDERSTAND
Chapter outline
Short introduction
Commodity flow approach examples
Conclusion
The basic equation:
DP + IMP + ADJ = IC + GFCE + HFCE + NPISH + GFCF + Δ INV + EXP
THE SOUTH AFRICA I KNOW, THE HOME I UNDERSTAND
Example poultry
SUPPLY
USES
Domestic production (value at farm gate)
plus Imports (c.i.f.)
6,150
350
plus Taxes on poultry
0
less Subsidies on poultry
0
plus Trade margins (on household consumption)
130
plus Trade margins (on purchases by pet food manufacturers)
10
plus Transport charges
65
Intermediate consumption (for pet food)
plus Household final consumption expenditure
0
plus Gross fixed capital formation
0
plus Change in inventories
0
45
equals Total known uses
known
1,045
6,705
RESIDUAL CALCULATION
Total supply
6,705
assume
less Total known uses
1,045
calculate
equals Final consumption expenditure by households
5,660
THE SOUTH AFRICA I KNOW, THE HOME I UNDERSTAND
Unknown
plus Government final consumption expenditure
plus Exports
equals Total supply
1,000
Example tobacco
SUPPLY
USES
Domestic production (basic prices)
8,200
Intermediate consumption
plus Imports (c.i.f.)
1,200
plus Household final consumption expenditure
plus Taxes on tobacco
940
less Subsidies on tobacco
0
plus Trade margins (on household consumption)
plus Transport charges
1,340
300
equals Total supply
11,980
8,000
plus Government final consumption expenditure
0
plus Gross fixed capital formation
0
plus Change in inventories
–10
plus Exports
350
equals Total uses
8,340
DISCREPANCY
Total supply
11,980
known
less Total uses
8,340
assume
equals Discrepancy
3,640
calculate
ADJUSTMENT
adjusted
Household final consumption expenditure
8,000
plus Discrepancy
3,640
Revised Household final consumption expenditure
THE SOUTH AFRICA I KNOW, THE HOME I UNDERSTAND
0
11,640
Example wood
USES
SUPPLY
Domestic production
4,900
Intermediate consumption ( 260 + 4500 + 3750)
Plus Imports
1,050
Plus Household final consumption expenditure
Plus Transport costs
595
Plus Trade margin
1,309
Plus Product taxes
0
Equals Total Supply at purchasers prices
7,854
assume
235
Plus Gross fixed capital formation
Plus Change in inventories
0
-785
Plus Exports
1,800
Equals Total uses
9,760
DISCREPANCY
known
8,510
ADJUSTMENT
Total supply
7,854
Domestic production
6089
Less total uses
9,760
Plus Imports
1305
Plus Transport costs
739
calculate
Plus Trade margin
1627
adjusted
Plus Product taxes
0
Equals discrepancy
-1,906
Equals Total Supply at purchasers prices
THE SOUTH AFRICA I KNOW, THE HOME I UNDERSTAND
9760
Chapter conclusions
Identify firm vs soft estimates
Zero vs Non-zero estimates
Knowledge of neighbours
Knowlegde of own country
Informal sector
Revisions
THE SOUTH AFRICA I KNOW, THE HOME I UNDERSTAND
Some thoughts
+
Clear and
precise
?
Advice on
judging
quality
Practical
examples
Secondary
production
Data triangulation
Input cost
structures
THE SOUTH AFRICA I KNOW, THE HOME I UNDERSTAND
END
Joe de Beer
DDG: Economic Statistics
+27 12 310 8024
[email protected]
THE SOUTH AFRICA I KNOW, THE HOME I UNDERSTAND