Attention to social stratification in the public discourse: An empirical study based on big data of books (1949–2008)

The Journal of Chinese Sociology

Table 2 Result of principal component analysis for stratum-related words

	Component 1	Component 2
Eigenvalue	16.82089	2.03105
Cumulative variance contribution	0.841	0.9426

Class-related vocabulary [in Chinese]			KMO	SMC
Social status	0.6763	0.5129	0.8009	0.9968
Class Consciousness	0.29867	0.0289	0.8353	0.9992
Social Stratification	0.9288	− 0.3595	0.7885	0.9994
Class cognition	0.9136	− 0.38	0.8315	0.9997
Class identity	0.9825	0.0197	0.8953	0.9988
Class isolation	0.9121	− 0.3615	0.8474	0.9985
Class conflict	0.911	− 0.3728	0.7991	0.9998
Elite class	0.98	− 0.1888	0.8464	0.9999
Middle class	0.9361	− 0.3417	0.8614	0.9993
Poverty class	0.9385	0.1363	0.9048	0.9997
Executive	0.9232	0.3391	0.8211	0.9997
Blue collar	0.9427	0.2645	0.8796	0.9989
White collar	0.9497	0.0421	0.8808	0.9999
Manager	0.8264	0.5191	0.8699	0.9991
Public servant	0.8594	0.4329	0.8975	0.9967
Scholar	0.9898	0.1163	0.8981	0.9998
Peasant worker	0.8858	− 0.4202	0.8655	0.9998
Entrepreneur	0.9783	0.0436	0.9342	0.9997
Private Entrepreneur	0.9528	− 0.1939	0.89	0.9997
clerk	0.7728	0.4234	0.8648	0.9982