For an empirical evaluation of causes of unemployment in OECD countries, see S. Nickell ‘Unemployment and Labour Rigidities: Europe versus North America’ in the Summer 1997 issue of the Journal of Economic Perspectives. For more on the relation between inflation and unemployment, see S. Nickell ‘Inflation and the UK labour market,’ in T. Jenkinson (ed) Readings in Macroeconomics, Oxford University Press. C. Brown ‘The 1988 Tax Cuts, Work Incentives, and Revenue’ in the 1988 issue of the journal Fiscal Studies is an interesting evaluation of the success of the Thatcher programme in boosting labour supply and cutting unemployment. Another useful source is the OECD Jobs Study published in 1995. Philip Evans explores some influences on recent trends in unemployment in ‘Women and working trends’ in Economic Review, September 1999.