Samenvatting

Demographic changes, such as the ageing of society and the decline of the birth rate, are
gradually leading to the loss of valuable knowledge and experience in the Dutch Labour
market. This necessitates an explicit focus on workers' sustainable employment so that they
can add value to the organisation throughout their career. This study looks into the way in
which the workers' motivation might affect their investments into their own sustainable
employment. It was conducted in a major industrial service provider, Sitech Services. The
conclusion is that intrinsic motivation plays an important role in both younger and older
employees, and that the younger workers undertake more action in order to give physical
form to their sustainable employment than their older colleagues.