“…This study focuses on "income disparity", which is one of the focal points of the study of common prosperity policy. The academic research on income disparity is divided into five parts, namely, why the income disparity is caused, the extent of income disparity (Andrew et al, 2015;Solt, 2020;Zhang et al, 2020), perceptions (Verwiebe et al, 2000), reasons (Irena et al, 2021) and attitudes (Andrew et al, 2015;Schneider, 2019), and the consumption inequality in the face of income disparity (Krueger et al, 2006).…”