The leaders of four leaing political parties in Madagascar have planned to meet in Addis Ababa, Ethopia for a two days dialogue aimed at ending the 17-month old political stalemate, despite deepening rivalry between them. Andry Rajoelina and former presidents; Marc Ravalomanana, Didier Ratsiraka and Albert Zafy will meet at the African Union headquarters for their fourth face-to-face negotiations. The two-day negotiation mainly aims to deal with the power-sharing arrangement for the Madagascar transitional administration, reports AllAfrica.