As has already been considered, the primary aim o f the Community is the creation o f a common market. This has meant that the Community has had to ensure that all unnecessary barriers to trade are removed. Member States have to play their part by, for example, ensuring the removal o f all customs duties while also ensuring that national laws do not, amongst other things, create unnecessary pecuniary or quantitative restrictions to trade or hinder the free movement o f persons within the Community
While these activities contribute to the aim o f integrating the economies o f Member States, they would not, alone, be sufficient to ensure the creation o f a single market within Europe. The Treaty recognises th a t‘undertakings’ (businesses o f various types, from single traders to multinational corporations) also have their part to play in ensuring the creation o f a common market.