It is lower than official retirement age in the majority of OECD countries. In Belgium and Luxembourg, for example, this gap is more than five years. Policy strategy of increasing older people’s engagement in labour market will mainly help address the following challenges: (1) change in local revenue, (2) an ageing labour force, (5) social isolation. Labour force (net) exits are estimated by taking the difference in the participation rate for each 5-year age group (40 and over) at the beginning of the period and the rate for the corresponding age group that is 5 years older at the end of the period.