Studies of local and national sources

These studies aim to:

examine where there is an appreciable risk of the mid-year estimates (MYEs) underestimating or overestimating the population as a whole and/or for particular population age/sex groups, local authorities (LAs) or types of LA
investigate the potential usefulness of particular data sources at a national level, across all LAs and for particular types of LA
work in partnership with local authorities, using a small number of case studies of LAs to investigate whether national and local knowledge and sources not used at present, could be used to assist the compilation of intercensal population estimates

There are three main ways in which additional data sources might be used:

as part of the quality assurance and validation process for the MYEs
as a component of the calculation of the MYEs but only in areas where the source is of sufficiently high quality that its accuracy can be assured
to use the source routinely as a component of the MYEs