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Standardization process of the FBS: Examples of various commodities James Geehan, Statistician, FAO Rome. Recap: Standardization A typical Supply Utilization Account can contain information for up to 1,500 commodities.
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Standardization process of the FBS: Examples of various commodities James Geehan, Statistician, FAO Rome
Recap: Standardization • A typical Supply Utilization Account can contain information for up to 1,500 commodities. • While this is useful for a comprehensive picture of the a country’s food supply, the amount of data is unmanageable and difficult for practitioners and policy makers to analyse. • The solution is to reduce the list of commodities captured within the SUA to a shorter, standardized, commodity list and presented in Food Balance Sheet format. • Standardization is the process of converting original quantities in the SUA back into their primary commodity equivalent • For example, flour of wheat back into the equivalent wheat quantity; or skimmed cow milk back into the equivalent whole cow milk quantity.
Supply Utilization Accounts (1,500+ commodities) Standardization of commodities Food Balance Sheets (Approx. 100 primary commodities)
Standardization example – 3 commodity groups: Wheat, Other Cereals, and Milk
Standardization example – Wheat, Other Cereals, and Milk • Step 1: • Reduce the list to the originating commodities. Sum the calorie and nutrient values of derived and origin commodities.
Standardization example – Wheat, Other Cereals, and Milk Step 2: The Input to derived commodities are subtracted from Processing in the origin commodity. Production of derived commodities is not converted back, to avoid double counting.
Standardization example – Wheat, Other Cereals, and Milk Step 3: For all other SUA elements in derived commodities, quantities are converted back to their origin commodity using the reciprocal of the extraction rate.
Standardization example – Wheat, Other Cereals, and Milk Example: Imports of Flour of Wheat soft back to Wheat soft Extr. rate of Wheat soft to Flour of Wheat soft = 80% Reciprocal = 1 / 0.8 = 1.25 Imports of Flour of wheat soft = 45 * 1.25 = 56 Imports of Wheat soft = 400 Total import of Wheat soft (including derived commodities) = 456 • Step 3: • For all other SUA elements in derived commodities, quantities are converted back to their origin commodity using the reciprocal of the extraction rate.
Standardization example – Wheat, Other Cereals, and Milk Example: Imports of Flour of Wheat soft back to Wheat soft Extr. rate of Wheat soft to Flour of Wheat soft = 80% Reciprocal = 1 / 0.8 = 1.25 Imports of Flour of wheat soft = 45 * 1.25 = 56 Imports of Wheat soft = 400 Total import of Wheat soft (including derived commodities) = 456 • Step 3: • For all other SUA elements in derived commodities, quantities are converted back to their origin commodity using the reciprocal of the extraction rate.
Standardization example – Wheat, Other Cereals, and Milk Example: Feed of Skimmed cow milk back to Cow milk whole Extr. rate of Cow milk whole to Skimmed cow milk = 96% Reciprocal = 1 / 0.96 = 1.04 Feed of Skimmed cow milk = 36 * 1.04 = 38 Feed of Cow milk whole = 0 Total Feed of Cow milk (including derived commodities) = 38 • Step 3: • For all other SUA elements in derived commodities, quantities are converted back to their origin commodity using the reciprocal of the extraction rate.
Standardization example – Wheat, Other Cereals, and Milk Example: Feed of Skimmed cow milk back to Cow milk whole Extr. rate of Cow milk whole to Skimmed cow milk = 96% Reciprocal = 1 / 0.96 = 1.04 Feed of Skimmed cow milk = 36 * 1.04 = 38 Feed of Cow milk whole = 0 Total Feed of Cow milk (including derived commodities) = 38 • Step 3: • For all other SUA elements in derived commodities, quantities are converted back to their origin commodity using the reciprocal of the extraction rate.
Standardization example – Wheat, Other Cereals, and Milk Example: Imports of Flour of Other cereals back to Other cereals Extr. rate of Other cereals to Flour of Other cereals = 80% Reciprocal = 1 / 0.80 = 1.25 Imports of Flour of other cereals = 35 * 1.25 = 44 Imports of Other cereals = 0 Total import of Other cereals (including derived commodities) = 44 • Step 3: • For all other SUA elements in derived commodities, quantities are converted back to their origin commodity using the reciprocal of the extraction rate.
