Question:The following, with one exception, are 'protectionist measures' in international trade.
  Which is the exception?
  A. Import quotas
  B. Tariffs
  C. Harmonisation of technical standards
  D. Customs procedures
  The correct answer is:Harmonisation of technical standards
  Rationale: Harmonisation of technical standards (eg for quality and safety) supports the free movement of labour, goods and services - and hence, free competition. (It is a feature of the European market, for example.) The other options are tariff (taxes and duties on goods entering the country) and non-tariff barriers to trade.