British Household Panel Survey, Waves 1-18, 1991-2009: Special Licence Access, Lower Layer Super Output Areas and Scottish Data Zones[ESDS Longitudinal] Abstract: The main British Household Panel Survey i (BHPS) is conducted by the href="http://www.iser.essex.ac.uk/ulsc/" title="ESRC UK Longitudinal Studies Centre" ESRC UK Longitudinal Studies Centre a (ULSC), together with the href="http://www.iser.essex.ac.uk/" title="Institute f...