A 1976 essay by Joey Bonner split the Chinese critical reception of the novel into five phases:[3]
Pre-1791
Commentators on the pre-publication manuscripts, such as Rouge Inkstone and Odd Tablet, who mainly provide literary analysis of the first 80 chapters.
1791–1900
Post-publication questions over authorship of the addendum, speculation upon esoteric aspects of the book. After 1875 using the term "Redology" for the studies.
1900–1922
Political interpretations.
1922–1953
"New Redology" led by Hu Shih, approach questions of textual authenticity, documentation, dating, and a strong autobiographical focus. The labelling of previous periods as "Old Redology".
1954–current [1975]
Marxist literary criticism, the book seen as a criticism of society's failures. Li Xifan's criticism of both Old Redology and Neo-Redologists such as Hu Shih and Yu Pingbo.
Zhou Ruchang. Between Noble and Humble: Cao Xueqin and the Dream of the Red Chamber, edited by Ronald R Gray and Mark S. Ferrara. New York:Peter Lang, 2009