1. African Centre for Statistics United Nations Economic Commission for Africa Chapter 3 Supply Table (SUT Handbook) Derek Blades Resource Person May 2014

2. African Centre for Statistics Consistency and Missing Values Consistency –All components of supply and use are available, but don’t add up –Tobacco consumption, –Sawn timber, plywood and wood laminates, domestic production and imports Missing values –Poultry meat – household consumption,transport costs, trade margins, inventories

3. African Centre for Statistics Conclusions (1) Here are some lessons we can draw from these three examples: 1.When a product balance does not balance, identify those items which are thought to be firm estimates. Adjustments will have to be made to the other entries. 2.If we know that an item is not zero it is always better to enter a number than to leave the cell empty. 3.Make use of information that comes from other countries.

4. African Centre for Statistics Conclusions (2) 4. Use your knowledge of your country. For example, if your country has extensive land borders it is certain that there will be some cross-border trade that is not recorded in the official trade statistics. 5. Statistics on domestic production will often only cover production by large enterprises, so you may need to make adjustments for production by informal producers. 6. Making product balances balance may change GDP(E) or GDP(P).

5. African Centre for Statistics Q UESTIONS - OMISSIONS Is the chapter clear? Does it help? Anything else to add?

6. African Centre for Statistics United Nations Economic Commission for Africa Thank you