South Korean President Park Geun-hye (L) shakes hands with Chinese President Xi Jinping prior to their meeting on the sideline of the G20 Summit at the West Lake State Guest House in Hangzhou on September 5, 2016. G20 leaders meet in China under pressure to reboot the world economy, after host leader Xi Jinping warned against "empty talk" and a rising mood of protectionism that threatens globalisation and free trade. / AFP PHOTO / POOL / HOW HWEE YOUNGHOW HWEE YOUNG/AFP/Getty Images