About this article

A review of the migration assumptions setting method for the National Population Projections was conducted by the Economic and Social Research Council (ESRC) Centre for Population Change (CPC) in 2012. The review made a number of recommendations for improvements to the method and split these into phases. The majority of the Phase 1 recommendations, which involved a general streamlining and updating of the method, were implemented for the 2012-based projections. However, one of the recommendations, namely the use of migration rates for certain migrant flows, could not be incorporated due to incompatibility with the existing Excel based projections system.