This method used for the compilation of construction price indices entails the selection of a representative sample of construction projects either taking place, or completed, in a given geographic area, over a specified period of time. The cost of each technical component (derived from blueprints, work specifications, etc.) of a given construction in the sample is priced as at the base reference date. This involves the use of a schedule of prices containing the price of each component of the construction at the base period date.

An individual product that is included in the sample selected for pricing within an elementary aggregate.

The price collected for a sampled product, sometimes described as a price quote.

Limiting the length of time that establishments stay on the survey panel by dropping a proportion of them after a certain period of time and replacing them with a new sample of establishments. Generally only done with the smaller respondents, for whom it is felt that responding to surveys imposes a significant burden.

Are persons who do not reside in the country of arrival and stay for just a day without spending the night in a collective or private accommodation within the country visited. Or are foreign persons who do not reside in the country of arrival and stay for just a day without spending the night in a collective or private accommodation within the country visited.

Sales measures gross operating revenues less rebates, discounts, and returns. Sales should be measured exclusive of consumption and sales taxes on consumers, as well as value added taxes.

Action taken to protect a specific industry from an unexpected build-up of imports — governed by Article XIX of the General Agreement on Tariffs and Trade (GATT) 1994.

Retail trade is a form of trade in which goods are mainly purchased and resold to the consumer or end- user, generally in small quantities and in the state in which they were purchased (or following minor transformations). This corresponds to the NACE Rev. 1 Division retail trade, except of motor vehicles and motorcycles; repair of personal and household goods. It includes the following Groups:
— retail sale in non-specialised stores;
— retail sale of food, beverages and tobacco in specialised stores;
— retail sale of pharmaceutical and medical goods, cosmetic and toilet articles;
— other retail sale of new goods in specialised stores;
— retail sale of second-hand goods in stores;
— retail sale not in stores;
— repair of personal and household goods.

Retail trade is defined in the International Standard Industrial Classification (ISIC) as the re-sale (sale without transformation) of new and used goods to the general public, for personal or household consumption or utilisation.

Retail trade includes the following ISIC Rev. 3 Groups in Division 52 (except repair of personal and household goods).

- non-specialised retail trade in stores;
- retail sale of food, beverages and tobacco in specialised stores;
- other Retail trade of new goods in specialised stores;
- retail sale of second-hand goods in stores;
- retail trade not in stores

The United Nations recommendations the following classification of residential buildings: Buildings co-existent with a single housing unit: - detached - attached Buildings containing more than one housing unit; - up to two floors; - from 3 to 10 floors; - eleven floors or more Buildings for persons living in institutions All others.