"The purpose of the DREAM system is to evaluate the long-term development of public finances in Denmark. A central question is whether the fiscal policy is sustainable and if not, which factors explain the development. This assessment requires knowledge of two variables: the future revenues and future expenditures of the public sector. The total DREAM system deals with the projection of these two variables; it is the toolbox available for projecting public revenues and expenditures." (Quoted from article)