U.S. Bureau of Labor Statistics
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Accès le : 17 septembre, 2017
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Producer Price Index - Current Commodity Series (WP), About 10,000 PPIs for individual products and groups of products are released each month. PPIs are available for the output of nearly all industries in the goods-producing sectors of the U.S. economy--mining, manufacturing, agriculture,fishing, and forestry--as well as natural gas, electricity, construction, and goods competitive with those made in the producing sectors, such as waste and scrap materials. The PPI program covers approximately 72 percent of the service sector's output, as measured by revenue reported in the 2007 Economic Census. Data includes industries in the following sectors: wholesale and retail trade; transportation and warehousing; information; finance and insurance; real estate brokering, rental, and leasing; professional, scientific, and technical services; administrative, support, and waste management services; health care and social assistance; and accommodation. To the extent possible, prices used in constructing the indexes are the actual revenue or net transaction prices producers receive for sales of their outputs. Scientific (probability) sampling techniques are used to select reporting establishments, products, and transactions for all types and volumes of output (not just volume-sellers). The commodity classification structure of the PPI organizes products by similarity of end use or material composition, regardless of whether the products are classified as primary or secondary in their industry of origin. This system is unique to the PPI and does not match any other standard coding structure. The commodity classification system is organized as a hierarchical structure that starts with major commodity groupings (2-digit level of aggregation). Each major commodity grouping includes (in descending order of aggregation) subgroups (3-digit level), product classes (4-digit level), sub product classes (5- and 6-digit level), item groupings (7-digit level), and individual items (8-, 9-, and 10-digit levels). Commodity-based FD-ID price indexes regroup commodities at the sub product class (six-digit) level, according to the class of buyer and the amount of physical processing or assembling the products have undergone. Commodity-based Inputs to Industries indexes regroup commodities to form indexes for the net input to industry production (excluding capital investment, labor, and imports). Summary Data Available: More than 4,000 commodity price indexes organized by product, service, and end use. Indexes by Final Demand-Intermediate Demand (FD-ID), Inputs to Industries, and by durability of Product (8 series) are also available, some back to 1947.