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Retail e-commerce sales are estimated from the same sample used for the Monthly Retail Trade Survey (MRTS) to estimate preliminary and final U.S. retail sales. Advance U.S. retail sales are estimated from a subsample of the MRTS sample that is not of adequate size to measure changes in retail e-commerce sales.
A stratified simple random sampling method is used to select approximately 10,000 retail firms whose sales are then weighted and benchmarked to represent the complete universe of retail firms. The MRTS sample is probability based and represents all employer firms engaged in retail activities as defined by the North American Industry Classification System (NAICS). Coverage includes all retailers whether or not they are engaged in e-commerce. Online travel services, financial brokers and dealers, and ticket sales agencies are not classified as retail and are not included in either the total retail or retail e-commerce sales estimates. Nonemployers are represented in the estimates through benchmarking to prior annual survey estimates that include nonemployer sales based on administrative records. E-commerce sales are included in the total monthly sales estimates.
The MRTS sample is updated on an ongoing basis to account for new retail employer businesses (including those selling via the Internet), business deaths, and other changes to the retail business universe. Firms are asked each month to report e-commerce sales separately. For each month of the quarter, data for nonresponding sampling units are imputed from responding sampling units falling within the same kind of business and sales size category. Responding firms account for approximately 72 percent of the e-commerce sales estimate and about 70 percent of the estimate of U.S. retail sales for any quarter.
For each month of the quarter, Horvitz-Thompson estimates are obtained by summing weighted e-commerce sales (either reported or imputed). Benchmarked monthly estimates are computed by multiplying each Horvitz-Thompson estimate by the carry-forward factor calculated during the most recent benchmarking. For more information on the benchmark process, click here. Estimates for the quarter are obtained by summing the monthly benchmarked estimates. The estimate for the most recent quarter is a preliminary estimate. Therefore, the estimate is subject to revision. Data users who create their own estimates using data from this report should cite the Census Bureau as the source of the input data only.
The data that is used as input for the Quarterly Retail E-Commerce Sales release is collected as part of the Monthly Retail Trade Survey (MRTS). You can find the survey forms for the Monthly Retail Trade Survey by visiting the MRTS Forms Page.
Yes. In addition, we are separately estimating e-commerce sales.
MARTS, MRTS, and ARTS
E-commerce
MARTS, MRTS, and ARTS
Firms classified in the Retail Trade and Food Services sectors as defined by the North American Industry Classification System (NAICS). Retail Trade, as defined by NAICS sectors 44-45, includes establishments engaged in selling merchandise in small quantities to the general public, without transformation, and rendering services incidental to the sale of merchandise. Two principal types of establishments classified in retail trade can be distinguished-
E-commerce
Firms classified in the Retail Trade as defined by the North American Industry Classification System (NAICS). Retail Trade, as defined by NAICS sectors 44-45, includes establishments engaged in selling merchandise in small quantities to the general public, without transformation, and rendering services incidental to the sale of merchandise. Two principal types of establishments classified in retail trade can be distinguished-
E-commerce sales are sales of goods and services where the buyer places an order, or the price and terms of the sale are negotiated, over an Internet, mobile device (M-Commerce), extranet, Electronic Data Interchange (EDI) network, electronic mail, or other comparable online system. Payment may or may not be made online.
MARTS, MRTS, and ARTS
E-commerce
The e-commerce and total sales estimates include sales covering all store and non-store retail locations in the United States operated by a firm selected in the survey. Sales made to a customer in a foreign country via a U.S. web site are included in the estimates.
No. The Monthly Retail Trade Survey covers all sales of establishments primarily engaged in retail activities, including traditional retailers selling via the Internet and companies selling goods exclusively on-line. The survey excludes companies conducting non-retail operations such as travel, ticketing, and financial services.
Firms are asked to report e-commerce sales on the same questionnaire used to collect total retails sales.
This may vary slightly from company to company, but according to the Financial Accounting Standards Board (FASB), revenue is recognized upon shipment of the merchandise, which is when it would be reflected in the Census Bureau's estimates.
Quarterly Retail E-commerce estimates will be based on the new sample effective with our annual revision release in May 2013. Since Retail E-commerce sales are estimated from the same sample used for the Monthly Retail Trade Survey to estimate preliminary and final U.S retail sales, please see our Monthly Retail Sample Revision FAQs.
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