Online Price Index (OPI)

The Online Price Index (OPI), Hong Kong’s inaugural daily dynamic weighted index for online prices, was first introduced at the Asian Meeting of the Econometric Society in China in June 2022. It takes into account discounts and purchasing volumes, drawing from detailed granular-level data sourced from 9 online platforms in Hong Kong over a span of 788 days, from 2020-08-04 to 2022-09-30. The OPI is a valuable tool for tracking daily shifts in online inflation and price levels, complementing the traditional offline CPI.

This project, “Constructing Daily Hong Kong Online Price Index and Price Dynamics: The Role of E-commerce in the Post-pandemic Era” is funded the Government of the Hong Kong Special Administrative Region of the People’s Republic of China under the Public Policy Research Funding Scheme 2022-23 (Project Number: 2022.A2.053.22B). We would like to extend our heartfelt gratitude to the Government for its generous support and funding of this project. Its contribution has been instrumental in bringing our vision to fruition. We deeply appreciate its belief in our endeavor and its commitment to advancing research and innovation.