This chapter is concerned with data on price indices, including wholesale price indices, consumer price indices, import price indices, and export price indices. The Wholesale price survey covers a scope limited only to the tradable goods at the processing stage (including materials, semi-finished goods, and finished goods) and importing commodities, excluding such non-tradable products as services, real estates, and securities. The commodities under investigation are picked based on the economic structure of Taiwan Area in the base year, updated once every five years, a practice applicable to all other price indices. The priced commodities include 1,142 items, 278 items for import prices, 279 items for export prices and 585 items for domestic wholesale prices. The price of domestic manufactured goods are surveyed by monthly mailing or internet reporting to designated companies except the prices of Agriculture, Forestry and Fishing goods are obtained from the digital transmission data dispatch by the Council of Agriculture, Executive Yuan and Taipei Agricultural Products Marketing CO. The designated companies are required to report the actual selling prices(in principal, price after adjustment for rebate, tax, and shipment, etc. around the 20th of a month) of selected commodities with the same specification.