Statistical Terms Glossary

The approach that allows PPPs and real final expenditures to be calculated annually when price collection is spread over a number of years (three in the case of Eurostat-OECD comparisons).

A guarantee that would cover, at any given time, only one or two payment installments but would, if the covered payments are met, "roll" to subsequent payments.

Transport of complete road vehicles, using roll-on roll-off techniques, on trains normally comprising low-floor wagons throughout.

Transport of complete road vehicles, using roll-on roll-off techniques, on trains normally comprising low-floor wagons throughout.

1. Reinvestment of money received from a maturing security in a similar security. 2. Term used for a delay allowed by a lender to borrower in making a principal payment on a loan. With governments, rollovers in the form of refundings or refinancings are routine.

Rollover refers to the renewal of an existing credit (or credits)

A package of certificates of deposit with maturity of, for example, three years, divided into six six-month periods. An investor buys the package as a whole but he may sell any of the six-month CDs on the secondary market. He is nevertheless committed to rolling over the CD by redepositing funds to the amount of the next six-month CD.

See revolving credit.

Date of adjustment of interest rate in maturity transformation.

Reinvestment of profits.

Risks associated with refinancing a loan.

Medium- or long-term bond whose annual coupon is renewed every three years, at which time the investor may be reimbursed.

See rollover certificate of deposit.

Treaty, administered by World Intellectual Property Organization (WIPO), UNESCO and ILO, for the protection of the works of performers, broadcasting organizations and producers of phonograms.

The usage of house/building roofs to concentrate rainfall into collection systems. Roof water harvesting is mainly used for domestic purposes and sometimes as water supply for family gardens.

A room is defined as a space in a housing unit or other living quarters enclosed by walls reaching from the floor to the ceiling or roof covering, or to a height of at least two meters, of an area large enough to hold a bed for an adult, that is, at least four square meters. The total number of types of rooms therefore includes bedrooms, dining rooms, living rooms, studies, habitable attics, servants’ rooms, kitchens, rooms used for professional or business purposes, and other separate spaces used or intended for dwelling purposes, so long as they meet the criteria concerning walls and floor space. Passageways, verandas, lobbies, bathrooms and toilet rooms should not be counted as rooms, even if they meet the criteria. Separate information may be collected for national purposes on spaces of less than four square meters that conform in other respects to the definition of ”room” if it is considered that their number warrants such a procedure.

A measure of total error defined as the square root of the sum of the variance and the square of the bias.

That part of the soil, i.e. all the levels, invaded by plant roots.

Loading/unloading through the vessel’s doors/ramps by a wheeled means of conveyance.

A location at which a Ro-Ro vessel can berth and load and unload motor vehicles and other mobile Ro-Ro units via ramps from ship to shore and vice versa.

Ro-Ro cargo consists of goods, whether or not in containers, on Ro-Ro units, which are rolled on and off the vessels, which carry them, by sea.

Ro-Ro ship with facilities for the carriage of goods only.

Ro-Ro ship with facilities for the carriage of both passengers and goods.