European System of Accounts (ESA)
In accordance with the guidelines established by the International Labour Organization (13th International Conference of Labour Statisticians), further specified in the European Union context by Commission Regulation (EC) 1897/2000, the concept of unemployment comprises all persons above a specified age who during the reference period were:
(a) "without work", i.e. not in paid employment or self-employment;
(b) "currently available for work", i.e. were available for paid employment or self-employment during the reference period; and
(c) "seeking work", i.e. had taken specific steps in a specified recent period to seek paid employment or self-employment.
Eurostat, "European System of National and Regional Accounts - ESA 2010", Luxembourg, 2013