The lack of proper policies aimed at generating tourist interest is a major reason why Africa's tourism remains largely untapped, Steve Kayizzi-Mugerwa, African Development Bank Acting Chief Economist and Vice-President, said Thursday, January 29 on the occasion of a conference on tourism and investment in Africa held in Madrid, Spain. In his view, many African governments have periodically discussed the importance of tourism, but few have developed full-fledged master plans for its development.