Labour flexibility has been advocated as a means of improving organizational performance (T.Desombre, C. Kelliher, F.Macfarlance, M.Oziligin 2006).The key factor in the development of organizational performance is the ability of management to adjust flexibly the available labour market resource that is, both internal and external in line with the supply and demand of the market, with little or no disruption to the production process(R.Gough, P.Holland, and J.Teicher 2006).These can include a wider range of responsibilities, a greater variety in the time or period of employment, a more flexible contractual employment relationship and a greater use of part-time and temporary employees.