2Tracy Oliver and Scott Bartley. Tax system complexity and compliance costs--some theoretical considerations. Econom- ic Roundup Winter 2005.
3John Hudson, Michael Godwin. The compliance costs of collecting direct tax in the UK: An analysis of PAYE and Na- tional Insurance [ J ]. Journal of Public Economics, 2000, (77) : 29 - 44.
4Joel Slemrod et al. The Income Tax Compliance Cost of Large and Mid - Size Businesses. http://ssm, corn/abstract = 913056,2002.
