Most VAT systems exclude public bodies from the scope of value added tax (VAT) systems. However, because what is considered proper for public bodies to engage in varies over time and depends on political preference, there has been a growing awareness that the exclusion necessarily gives rise to economic distortion and legal uncertainty. A movement to include public sector bodies within the GST system to some extent or even fully (as in New Zealand) underlies the European Commission's 2011 study on the treatment and economic impact of exemptions in the public interest. Whether the present EU...