6 October 2015.Official visit of John Dramani Mahama, President of the Republic of Ghana to the OECD.Exchange of letters of acceptance of the invitation to become a member of the Development Centre..Left to Right: Rintaro Tamaki, Deputy Secretary-General of OECD; John Dramani Mahama, President of the Republic of Ghana; Pierre Duquesne, Ambassador for France to the OECD; Mario Pezzini, Director of the OECD Development Centre..OECD Headquarters, Paris, France.Photo: OECD/ Andrew Wheeler