The objective of this paper is to examine whether any
impairments in health and social lives can be found
under different kinds of flexible working hours, and
whether such effects are related to specific
characteristics of these working hours. The results of
both studies consistently show that high variability of
working hours is associated with increased impairments
in health and well-being and this is especially true if
this variability is company controlled. These effects
are less pronounced if variability is self-controlled;
however, autonomy does not compensate the effects of
variability. pdf 2004
