For more than four decades, cohesion policy has been the European Union’s main investment policy and the cornerstone of the Single Market, Cyprus Minister of Finance, Makis Keravnos said, presiding over the first session of the informal meeting of Ministers responsible for cohesion policy, hosted in the framework of the Cyprus Presidency of the Council of the European Union, at the “Filoxenia” Conference Centre in Nicosia, on Friday morning.