African leaders have signed an agreement to set up a single continental market that is expected to boost trade and speed up integration. 44 of 55 African Union Member states signed the African Continental Free Trade Area (AfCTFTA) at an extraordinary summit of the continental body in Kigali, Rwanda. President Muhamadu Buhari of Nigeria, one of Africa's biggest economies, cancelled his trip to Rwanda saying his country needed more tume to consult. Sakina Kamwendo spoke to Author of 'Africa Is Open for Business' , Victor Kgomoeswana