A giant poster of Ali Ben Bongo, the ruling party candidate and son of the former president, is seen in the capital Libreville, August 23, 2009. The winner of Gabon's August 30 presidential election will have to tackle a stretched budget and an oil economy in long-term decline, but international partners are unlikely to see a shift from investor-friendly policies. None of the candidates standing to succeed Omar Bongo, who towered over the central west African state for four decades until he died in June, have suggested Gabon should deviate from its bond buyback programme or tap investors for extra cash. Ali Ben Bongo is also the favourite for Sunday's poll among the 23 declared presidential candidates. Picture taken August 23, 2009. REUTERS/Daniel Magnowski (GABON POLITICS ELECTIONS)