With the APEC Leaders' Week underway in Lima, Columbia University Professor Jeffrey Sachs takes stock of the APEC's likely top agenda. Prof. Sachs tells CGTN's Tian Wei that China has a leg up with the digital revolution, moving from 5G to 5.5G and soon leading to 6G. He adds the Belt and Road Initiative is vital for global connectivity, with strong linkages in infrastructure and renewable energy. He also talks about how extremely important China's partnerships are with ASEAN and Latin America, all benefiting from tech innovation and big markets.