In July–August 1957, Jean Duret, Director of the Centre for Economic Research of the General Confederation of Labour (CGT) and member of the French Economic Council, considers the ratification by the French Parliament of the Treaties establishing the European Economic Community (EEC) and the European Atomic Energy Community (EAEC or Euratom) and criticises the economic choices made by the French Government, highlighting the threats that they represent for the working class.
In July 1956, Jean Duret, Director of the Centre for Economic Research of the General Confederation of Labour (CGT) and member of the French Economic Council, outlines the differences of opinion between supporters of the Common Market and its dangers for the French economy.
In February 1957, Jean Duret, Director of the Economic Research Centre of the French General Confederation of Labour (CGT) and member of the French Economic Council, outlines a number of dangers posed to the French economy by the Common Market and highlights the dangers of West German hegemony in Europe.
In its July–August 1957 issue, the Socialist journal Cahiers Internationaux considers the ratification by the French Parliament of the Treaties establishing the European Economic Community (EEC) and the European Atomic Energy Community (EAEC) and paints a critical picture of them.
At the Congress of the World Federation of Trade Unions, held in Leipzig from 4 to 15 October 1957, Benoît Frachon, French General Secretary of the General Confederation of Labour (CGT), delivers an address in which he outlines the dangers of the Common Market.