How do the ATPI series differ from air travel price index series currently published by BLS?
• Prices Included in the Index Calculations. The Bureau of Labor Statistics (BLS) currently publishes both a Consumer Price Index (CPI) and a Producer Price Index (PPI) for airfares. The CPI measures changes in the prices paid by consumers for airline trips, including taxes and any distribution costs not received by the carriers (e.g., travel agents’ fees), while the PPI measures changes in revenues received by producers of airline trips. The CPI includes trips purchased from foreign carriers, while the PPI excludes these. The ATPI series presented here are similar to the BLS CPI series in that prices include taxes paid as well as fares. Distribution costs, however, are not included and, due to legal restrictions on use of the Passenger Origin and Destination (O&D) Survey data, the ATPI series currently incorporate only prices reported by domestic carriers. One of the key differences between the ATPI and the BLS indexes is the ATPI’s inclusion of special discount fares (e.g., Iinternet
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