The emergence of the Common European Agricultural Policy is the result of a complex institutional process which, after lengthy discussions, was first synthesised in the 1957 Treaty of Rome and took a second operational step in the 1962 Stresa Conference. The first Mansholt Plan defined the contours of the future CAP on the basis of two objectives: firstly, the introduction of the common market for agricultural products and, secondly, support for the most underdeveloped farms through structural measures. In order to achieve the first objective, a complex negotiation was launched with the aim of creating so-called Common Market Organisations for each product group.