PRACTICAL APPLICATION OF ONLINE CASH REGISTER RECEIPT DATA IN THE COMPILATION OF THE CONSUMER PRICE INDEX IN UZBEKISTAN
Keywords:
Consumer Price Index, online cash register receipt data, scanner data, point-of-sale data, MXIK, COICOP 2018, Stata, official statistics, inflation, price observation.Abstract
This paper examines the practical application of online cash register receipt data in the compilation of the Consumer Price Index (CPI) in Uzbekistan. The expansion of digital retail infrastructure and electronic sales recording systems has created new opportunities to incorporate high-frequency transaction data into official price statistics. The study analyzes data obtained from large supermarkets, pharmacies, and fuel stations and focuses on their statistical treatment through MXIK-based product identification, mapping to COICOP 2018 and an internal classifier, integration through the SIAT system, processing in Stata, and subsequent incorporation into CPI calculation. International experience demonstrates that scanner and point-of-sale data improve the coverage, timeliness, and representativeness of consumer price indices. In this context, the Uzbek practice shows that online cash register receipt data can serve as a practical and scalable instrument for modernizing CPI methodology and strengthening the digital foundation of official inflation measurement.
References
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