Few mainstream economists have been quite as downbeat on China as Peking University professor and noted China watcher Michael Pettis. Pettis has long held that the world’s No. 2 economy will grow at a maximum of 3.5 percent a year for the rest of the decade, well below a consensus call that appears to have settled into the 5-7 percent range. “And honestly, I think if I’m wrong, it will be to the downside rather than the upside,” he told Reuters.