Karl Brauner, deputy Director-General of the World Trade Organization, says global trade will slow further because of China's economic transition.
Martin Sorrell, CEO of WPP, says China's 2015 GDP was really 4 percent or less, but will be the world's fastest growing economy this year.
Steve Wang, economist at Reorient Financial Markets, says China is investing in unique, high-tech infrastructure, such as high-speed rails.
Don't pay attention to China GDP, because the sectors within it are performing very differently, says Pu Yonghao, partner and CIO of Fountainhead Partners.
Markets are rightly worried about global growth, says Steven Wieting, global chief investment strategist at Citi Private Bank.
Investors are beginning to see that China has a growing domestic economy, as seen from the earnings of Apple and Starbucks, says Bill Smith, CIO and senior portfolio manager at Battery Park Capital.
BlackRock Chief Investment Strategist Jeff Rosenberg explains how confidence and financial market conditions are impacting the U.S. economy.
China's GDP numbers in line with expectations; some December figures lower than expected. CNBC's Eunice Yoon explains.
CNBC's Eunice Yoon reports China growth slows to a 25-year low.
CNBC's Eunice Yoon reports the latest numbers on China growth.
Matthew Beesley, head of global equities at Henderson Global Investors, says the world highly depends on China for growth, so slower GDP growth in the country is concerning.
Carl Weinberg, chief economist and managing director of High Frequency Economics, comments on China's economy which grew by 6.9 percent in 2015, compared with 7.3 percent the year before.
Chris Williamson, chief economist at Markit, believes China's economy is still growing at a decent rate as it continues to rebalance.
Toby Lawson, Australia head of global markets at Societe Generale Newedge, remarks that China Q4 and full-year GDP data might give markets a chance to take a breather.
Given the size of China's economy, 6.9 percent growth is significant and it is still a powerful contribution to the global economy, says John Beck, London group director of fixed income at Franklin Templeton Fixed Income.
Jonathan Barratt , CIO at Ayers Alliance Securities, discusses Rio Tinto's production plans and the prospects for iron ore demand in China.
David Kuo of The Motley Fool Singapore and Jahangir Aziz from JPMorgan, discuss China's official 2015 GDP growth rate of 6.9 percent on year, which came in line with expectations.
Marc Faber, editor and publisher of the Gloom, Boom & Doom report, says China's economy is much, much worse than official statistics suggest.
Zhao Yang, China chief economist at Nomura, and Mark Grant, MD and chief fixed income strategist at Hilltop Securities, discuss their expectations for China's GDP figures.
Chinese citizens are really worried about a potential hard landing in the economy, reports CNBC's Eunice Yoon.