APPENDIX I
Technical Notes
| Producer Price Index (PPI) | Measures the rate of change in the prices of goods produced in Fiji. It is a fixed weighted index with March Quarter 2011 = 100.0 and is calculated on a quarterly basis using the Fiji Standard Industrial Classification (FSIC). | ||
| Index Formula | The Producer Price Index is compiled using the Laspeyres index formula with March Quarter 2011 = 100.0 as the reference base period. | ||
| FSIC | Fiji Standard Industrial Classification | ||
| n.e.c. | Not elsewhere classified. |
APPENDIX II: STEPS INVOLVED IN DERIVING THE SAMPLE
The following are the detailed steps involved in deriving the sample:
- A listing of the producing firms under different FSIC and their Gross Output [GO] was obtained from the establishment surveys.
- The Gross Output [GO] of the establishments under each FSIC were sorted using the Top-down approach (descending order).
- Relative contribution to total class was calculated (individual output divide by the total output for each FSIC) and then Cut-off sampling of 80% was used to select the establishments at class level.
- Weights were derived at the Section level, Division level, Group level and Class level.
- Re-weighting was done and establishments below the cut-off were eliminated.
- Weights of the deleted establishments were re-allocated (distributed proportionally) to the remaining establishments within the Class.
- Price relative was calculated as the ratio of the current quarter’s price to the reference base period price (which is March quarter or Quarter 1, 2011) for the same product.
- Group indices were calculated by weighting product indices with the relevant product weight, according to each group’s weighting structure, using the Laspeyres index formula.
