In his memoirs, former Luxembourg Prime Minister Pierre Werner reflects on the debates between economists and monetarists that took place during the work of the ad hoc group tasked with drafting a plan by stages for an economic and monetary union.

On 27 January 1970, the Belgian Ministry of Finance publishes a note on a three-stage plan for European monetary solidarity.

In preparation for the Conference of European Finance Ministers to be held on 23 and 24 February 1970 in Paris, the Luxembourg Ministry of Finance publishes a draft plan of action for the achievement by stages of a monetary union.

On 5 March 1970, highlighting the differences of opinion between economists and monetarists, the German Embassy in Luxembourg describes the critical remarks made by Pierre Werner, Luxembourg Prime Minister and chairman of the ad hoc group, with regard to the German plan for an economic and monetary union.

On 11 March 1970, Jacques Rueff, French economist and senior official, congratulates Pierre Werner, Luxembourg Prime Minister and Finance Minister, for his study entitled ‘Europe on the road to monetary union’.

In an internal circular dated 10 August 1970, the German Foreign Office reviews the work of the Werner Group, which has been tasked with drawing up a report on the gradual establishment of economic and monetary union in the European Community.

On 16 October 1970, in Paris, the Luxembourg Prime Minister and Finance Minister, Pierre Werner, presents a report to members of the ‘Cercle de l'Opinion' on the implications of European economic and monetary union.

On 16 October 1970, Raymond Barre, Vice-President of the European Commission with special responsibility for Economic and Financial Affairs, gives an address to the members of the Cercle de l’Opinion in Paris in which he outlines the issues surrounding European economic and monetary union.

On 16 October 1970, Robert Marjolin, former Vice-President of the European Commission, gives an address to the members of the Cercle de l’Opinion in Paris in which he outlines the issues surrounding European economic and monetary union.

On 28 October 1970, Jacques Rueff, a French economist and senior official, congratulates Pierre Werner, Luxembourg Minister of State, President of the Government and Finance Minister, on his plan to establish a European union through monetary cooperation.

On 9 December 1970, the Permanent Representation of Luxembourg to the European Communities sends a note by Raymond Barre, Vice-President of the European Commission with special responsibility for Economic and Financial Affairs, to Gaston Thorn, Luxembourg Foreign Minister, and Pierre Werner, Luxembourg Prime Minister and Finance Minister, in preparation for the forthcoming discussions with the United Kingdom on economic, financial and monetary issues.