The definition of employed used by the ROC is adopted from the regulations of the International Labor Organization (ILO) and is identical with the definition of employment used in the labor statistics announced by the leading countries. According to this definition, during the survey's reference week (the week that includes the 15th day of each month), persons aged 15 & over who meet one of the following requirements are considered employed: (1) engaging in compensated work (regardless of hours) or unpaid family workers performing at least 15 hours of uncompensated work per week; (2) a compensated worker with work that has not worked during the survey reference week; (3) a person who has been hired and collected compensation, but has not yet begun work for some reasons.