Full coverage: G20 Hangzhou Summit

For more on the G20 summit in Hangzhou, joining us in the studio is Zhao Xijun, deputy director of the Institute of Finance and Securities at Renmin University of China.

Q1. Many leaders of the world's most important economies are hoping the summit could be a platform to give new impetus to "hard reform" to tackle sluggish global growth. Given that monetary and fiscal policies have been stretched pretty far with limited effects, what kind of reforms are needed?

Q2. How important is green energy to future development considering the sluggish global recovery?

Q3. What role can the BRICS countries play? What type of reforms do they need?