Wang Wen, executive dean of Chongyang Institute for Financial Studies at Renmin University of China:
Although terrorism is likely to be a main talking point at the G20 summit, and Francois Hollande has announced he will not attend, the planned discussions on the three main themes, "inclusiveness, investment and implementation", will still take place.
The East Asia Summit and its relevant forums are "not proper venues" to discuss South China Sea issues, China's Foreign Ministry said on Friday.
President Xi Jinping will attend G20 meetings in Turkey from Saturday to Monday and APEC meetings in the Philippines from Tuesday to Thursday.
Xi will embark on a busy and fruitful agenda, to take Beijing's diplomacy to new heights.
Yuksel Gormez, a senior economist at the Central Bank of Turkey, said ahead of the G20 summit that China has become the engine for world economic development.
A free trade zone within the Asia-Pacific region will lead to further integration and globalization, however, APEC member economies must first overcome economic protectionism.
The leaders of the Group of 20 (G20) are meeting in their 10th summit in Antalya, Turkey on Sunday and Monday, at a time when the world is facing a slowdown in both economic growth and trade seven years after a global financial crisis hit hard.
The continuing flood of cheap money poses an even greater threat to economic growth that the G20 leaders must work together to fix.
Chinese President Xi Jinping's just-concluded visit to Singapore has created new engines for bilateral cooperation and set a new model for regional cooperation.
China should not be urged to shoulder more international responsibilities without the other global powers sharing their part of the responsibilities.
This change is urgently needed in the countries of Asia and the Pacific.