Import duties consist of customs duties, or other import charges, which are payable on goods of a particular type when they enter the economic territory

An import coverage ratio is the share (or percentage) of a country’s own imports that is subject to a particular non tariff barrier, or any one of a specified group of non tariff barriers. They are calculated by attaching actual values to bilateral trade flows between various exporters and the importing country.

For patents: when the government itself uses or authorizes other persons to use the rights over a patented product or process, for government purposes, without the permission of the patent owner.

The term globalisation is generally used to describe an increasing internationalisation of markets for goods and services, the means of production, financial systems, competition, corporations, technology and industries. Amongst other things this gives rise to increased mobility of capital, faster propagation of technological innovations and an increasing interdependency and uniformity of national markets

For a continuous distribution with frequency function f (x) the geometric mean may be defined by the equation: / log G= / logxf(x)dx. /-.

A price index defined as the weighted geometric average of the current to base period price relatives using the value shares of the current period as weights.

A price index defined as the weighted geometric average of the current to base period price relatives using the value shares of the base period as weights.

In additional to statistics for individual countries, the OECD monthly Main Economic Indicators also presents aggregates for the following four main groups of countries: Euro area (EMU); European Union (EU27);OECD-Total; Major seven countries. (There used to be a fifth one OECD Europe.) Area totals are obtained either by simple aggregation or as weighted averages of the component country data.

Place names (or words associated with a place) used to identify products (for example, “Champagne”, “Tequila” or “Roquefort”) which have a particular quality, reputation or other characteristic because they come from that place.

The geodetic reference system is defined as 'a complete reference system for positioning a point on the earth, including datum, co-ordinate description, co-ordinate system and possibly a projection' (CEN 1998).