The microsimulation model, SMILE, has been developed to forecast and analyse the long-run developments in demographics, household relocation patterns, labour market affiliation, education level, income, pensions as well as housing demand. An essential property of a microsimulation model, and indeed SMILE, is that it is based on individuals rather than groups of individuals. This property makes it possible to analyse individual life cycles and to calculate distributions rather than averages of income, pension, etc.