Abstract:
The key
objectives
for this research were to:
() Provide a
database in
order to extend the knowledge
and
understanding of the management and use of overtime across the
whole economy;
ii) Review and test a range of research questions and
hypotheses
concerning specific problems and controversies surrounding the use
of overtime.
The research was structured within three main phases viz. desk-research, fieldwork and analysis.
The Initial search for Improved U. K labour
market management revealed overtime to be
a
key
factor,
equivalent to 1.5 million
full time jobs,
and apparently
little
understood.
It had been
forecast that overtime would
fall In the late 1970s and 1980s and that this fall
would result
from the
combined effects of: unemployment, uncompetitive unit
labour
costs and
increasing
management
scrutiny.
In the event overtime
Increased considerably and continues to increase,
confounding
many of the soothsayers.
In 1988-89, the cost of overtime to employers was £15,000 million,
£5,000 million of which was the premium paid to secure the benefits
which management must
have considered the overtime would
bring to their organisations.
A
research market gap was
found
regarding the use and management of overtime across the
economy as a whole.
Moreover, this knowledge
would be
needed since change remains an
apparent
inevitability. It
was against this backdrop that
overtime was
investigated. Desk-
research was
directed at providing an unbounded literature
review, addressing the key issues
which surround the use of overtime.
This
review established that there is
a
high degree
of
controversy regarding the use of overtime and it facilitated the detailed design
of the research
questions and
hypotheses. A
multi-faceted methodology was developed to Investigate these
questions and test the hypotheses. This Involved building
on the desk-research,
using two
mutually supportive
fieldwork techniques; firstly,
a survey, using a mailed questionnaire, and
secondly, a set of semi-ethnographic case studies.
The Survey
covered all economic sectors, sizes of establishment and regions of the U. K. It
yielded 225 usable cases, representing over 40,000 employees and collected a wide range of
statistical data
regarding the use and management of overtime and structures and perceptions of
working time. These
results were analysed by
reference to a number of structural variables,
including:
sector; regional
location;
size of establishment; type of worker and overtime
levels.
The
resulting series formed
a
basis for
standardised comparisons between the structural variables.
A
range of statistical data
and significant associations and
differences
were established, providing
a unique empirical database
and thereby satisfying one of the key
objectives of the research.
Thus the survey produced a skeleton of statistical evidence, whereas the case studies
built
on this
framework
to give the detailed
explanation and
Interpretation
needed for
a
better
understanding of
the processes involved.
The
results of
both the desk-research and
fieldwork
were drawn together to help
resolve the
research questions and test the hypotheses. It
was established that overtime
detracts from
operational
flexibility,
confounding the majority of managers who claimed flexibility-based reasons
such as'unexpected
demand'
and
'emergency
cover' as the prime explanations of their use of
overtime.
Indeed,
about 75% of overtime was
found to be
systematic,
insofar
ash was
predictable, and therefore operated either
by
management choice or
default. The
effects of
overtime on employment were more significant than had been indicated in the literature. For
example, the substitution of overtime for
employment was
found to be
more widespread than
most commentators
had
predicted, although managers did
not readily yield to this fact.
Conversely, worker dependency
on overtime earnings was
found to be
much
less
common than
previous research had
allowed.
In concert with the literature, however, dear
and extensive evidence was
found to associate
overtime with ineffective management.
A
significant amount of overtime was simply unnecessary
from
an operational viewpoint, and the majority of the balance
was
ineffective In that it was less
cost-effective than the alternatives.
Such
unnecessary and
ineffective
overtime was characterised
by
phenomena such as: mistaken management understanding of
its
application, effects and
comparative costs; an
inappropriate
management decision
process
leading to its
use; the
improper
and
inadequate
utilisation of management controls; employee control of the overtime
and adverse employee welfare associated with
its
use.
Notwithstanding the above conclusions, a minority of overtime was found to be
an effective and
rational means for
management to satisfy demand
and to meet corporate objectives.