Report of the Royal Commission on the Distribution of Income and Wealth, Report No. 6, Lower Incomes, Cmnd 7175, HMSO, London, 1978. xxiv+403 pp. £6.75; - R. Layard, D. Piachaud and M. Stewart, The Causes of Poverty, Background Paper No. 5, Royal Commission on the Distribution of Income and Wealth, HMSO, London, 1978. v+190 pp. £3.25.