aSPI-core (Alibaba Shopping Price Index-core Alibaba Online Shopping Core Commodity Price Index) is a fixed basket price index, the idea of which is to select a representative basket of products, and examine the extent of changes in the cost of purchasing the basket at different points in time and under different price structures to represent changes in price levels. aSPI-core uses an innovative screening algorithm to circle nearly 100,000 core commodities on the Alibaba retail platform as a fixed "price" index. The idea is to select a representative basket of products and examine the extent to which the cost of purchasing the basket changes at different points in time and under different price structures to represent the change in the price level, i.e., the theoretical framework used by most countries in compiling the CPI. aSPI-core uses an innovative screening algorithm to identify nearly 100,000 core commodities on the Ali Retail platform as a fixed basket, and tracks the change in the price of the commodities and services within the basket on a monthly basis to reflect the price sensitivity of the online shopping The market price sensitivity to the macro-economy.
aSPI-core consists of ten categories of indexes: food, tobacco, alcohol and supplies, clothing, household equipment and maintenance services, healthcare and personal goods, transportation and communications, entertainment, education and cultural goods and services, housing, office supplies and services, and hobbies and investments. The Alibaba Shopping Price Index (aSPI), which is based on the cost of living theory, theoretically overcomes the shortcomings faced by fixed-basket indexes. The aSPI measures the change in the minimum level of expenditures resulting from the substitution effect in the quantity of consumption triggered by a change in the relative price of a product under the condition of constant utility gained by the consumer. Alibaba online shopping price index (aSPI) is built on the basis of the leaf category monthly weighted average transaction price, using chain index algorithm, to reflect the whole network overall online shopping expenditure price level changes.
aSPI and aSPI-core ten categories of index composition consistent, specific categories accounted for the proportion of monthly changes, weight changes than aSPI-core more real-time. The two are complementary and mutually reinforcing. This is a visual online interactive product for the public media, combining open national statistics, regional economic data, e-commerce industry data and Ali Group data, and presenting it around a map perspective. The beta version of the data map has already been launched, covering seven categories of data and more than 20 indicators, with single-indicator colorful China, interactive trend charts and other features designed to create an interesting exploration environment for industry insiders and data enthusiasts, and the product provides data downloads and sharing, and allows online discussions on topics of interest.