In modern mixed economies such as those of the
OECD countries, it is currently the most common form of work arrangement. Although most labour is organised as per this structure, the wage work arrangements of
CEOs, professional employees, and professional contract workers are sometimes conflated with
class assignments, so that "wage labour" is considered to apply only to unskilled, semi-skilled or
manual labour. Various studies have shown that employees generally spend 1.5 to 3 hours a day on non-work related activities.