李迅雷：中国高收入群体与低收入群体的人均可支配收入差距在11倍左右，全国的高收入群体正在向一线城市集聚

Group 1 - The core viewpoint of the article highlights that China's income disparity is currently greater than that of Japan in the 1990s, with Japan being one of the countries with the smallest wealth gap among developed nations [1] - Official data on the Gini coefficient in China has not been released recently, but sampling data from the National Bureau of Statistics indicates that the income disparity between high-income and low-income groups is approximately 11 times [1] - The buyers of Shanghai Yihua Courtyard include industrial entrepreneurs, film stars, and foreign nationals, with local buyers from Shanghai accounting for about 28.6% and buyers from Jiangsu and Zhejiang provinces collectively making up 30% [1]