Migration has added around 0.5 per cent. per annum to the working age population between 1997 and 2006, stimulating growth in total output. Average output growth over this period was 2.7 per cent. and migration is estimated to have contributed around 15-20 per cent. of this.
The direct impact of immigration on gross domestic product per capita has been small but broadly positive.
The impact of immigration on the economy is discussed in more detail in a cross-departmental report1 in sections 3.3 and 3.4.
1 Home Office and Department of Work and Pensions (2007). The Economic and Fiscal Impact of Immigration: A Cross-Departmental Submission to the House of Lords Select Committee on Economic Affairs:
The Government Actuary's Department (GAD) has made no such projection since responsibility for the production of the national population projections transferred from GAD to the Office for National Statistics (ONS) on 31 January 2006. This transfer was recommended by an independent review of the actuarial profession and of GAD conducted by Sir Derek Morris. The latest set of population projections produced by ONS—and the first since the transfer of responsibility took place—was published on 23 October 2007.