U.S. Treasury Secretary Janet Yellen told Chinese Premier Li Qiang on Sunday that the world's two biggest economies should engage in conversations to cooperate on addressing pressing global issues, the U.S. Treasury Department said.The United States and China have a "duty" to responsibly manage the two countries' complex relationship and show leadership in tackling global challenges, Yellen said at the beginning of a meeting with Li in Beijing.Li said that China hopes the two countries will be "partners rather than adversaries," with mutual respect, peaceful coexistence and win-win cooperat…READ FULL ARTICLE