Further, the implementation of European Development Fund (EDF) programmes has been hampered as a result of lack of national level support, co-ordination and communication for regional level priorities. Moreover, the integration of aid with the negotiation of trade agreements creates the potential for conflicts of interest, as the perception of aid being tied to negotiation outcomes is hard to avoid if the donor is also one of the parties to the trade negotiation. The North-South corridor in Africa and the Greater Mekong Initiative in Southeast Asia serve as examples. The North-South corridor provides the physical and institutional support for the movement of goods, services and people in three overlapping developing regions and common markets: the East African Community (EAC) Common Market, the Southern African Development Community (SADC) and the Common Market for Eastern and Southern Africa (COMESA).