Peak part-time workers were used to cover high in demand during the working days and weekend in a range of economic sectors. This is the common ways to achieve the peak demands.
In order to satisfy the customers' demands, it seems have to increase the staff. The part time employment is the economic ways of reducing the labour cost. Those part time workers who covered the peaks in demand and are trained to cover a range of functions including nearly all the work process. The fact that the part time workers untertake the same duties as the full-time staff and are subject to the same performance measure.
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