ILO homeAbout the ILOHow the ILO worksOrganizational structureInclusive Labour Markets, Labour Relations and Working Conditions Branch (INWORK)Information resourcesPublicationsThe effects of working time on productivity and firm performance: ... Conditions of Work and Employment Series No. 33 The effects of working time on productivity and firm performance: a research synthesis paper Download: The effects of working time on productivity and firm performance: a research synthesis paperpdf - 2.2 MB .