Cost of living file Letters between Dr Crowden and Dr Aykroyd concerning costs of foods in the UK and lists of prices, February 1933 and a report of the Working Classes Cost of Living Committee 'appointed to enquire into and report upon (i) the actual increase since June 1914, in the cost of living to the working classes and (ii) any counterbalancing factors (apart from increases in wages) which may have arisen under War conditions', HMSO, 1918 1918 and 1933