Former Dean of the Kennedy School of Harvard University Professor Joseph Nye (C) speaks during a forum on "China's Economic Development and China-U.S. Relations" at Harvard University's famed Loeb House in Cambridge of Massachusetts, the United States, Oct. 15, 2018. Joint efforts have to be made by both the United States and China to maintain the healthy and stable development of bilateral cooperative ties, which are not only mutually beneficial but crucial for a stable world order, top American and Chinese experts said here Monday. (Xinhua/Wang Ying)