Céline Bonnefond

In search of the elusive Chinese urban middle class: an exploratory analysis

This article aims to identify and characterise the Chinese urban middle class. We propose to improve the description of the middle class using an innovative approach combining an economic approach (based on income) and a sociological approach (based on education and occupation). The empirical investigations conducted as part of this research are based on the China Health and Nutrition Survey (2009). First, we define the middle income class as households with an annual per capita income between 10,000 yuan and the 95th percentile. On this basis, approximately 50% of urban households may be said to belong to the middle class. Second, we use information on employment and education to characterise the heterogeneity of the middle income class. Using clustering methods, we identify four groups: (i) the elderly and the inactive middle class, mainly composed of pensioners; (ii) the old middle class, composed of self-employed workers; (iii) the marginal middle class, composed of skilled and unskilled workers; and (iv) the new middle class, composed of highly educated wage earners in the public sector. We show that the different groups have distinctive features based on variables such as housing and household appliances and equipment.

Social class and body weight among Chinese urban adults: the role of the middle classes in the nutrition transition.

While a plethoric empirical literature addresses the relationship between socio-economic status and body weight, little is known about the influence of social class on nutritional outcomes, particularly in developing countries. The purpose of this article is to contribute to the analysis of the social determinants of adult body weight in urban China by taking into account the influence of social class. More specifically, we propose to analyse the position of the Chinese urban middle class in terms of being overweight or obese. The empirical investigations conducted as part of this research are based on a sample of 1320 households and 2841 adults from the China Health and Nutrition Survey for 2009. For the first step, we combine an economic approach and a sociological approach to identify social classes at household level. First, households with an annual per capita income between 10,000 Yuan and the 95th income percentile are considered as members of the middle class. Second, we strengthen the characterization of the middle class using information on education and employment. By applying clustering methods, we identify four groups: the elderly and inactive middle class, the old middle class, the lower middle class and the new middle class. For the second step, we implement an econometric analysis to assess the influence of social class on adult body mass index and on the probability of being overweight or obese. We use multinomial treatment regressions to deal with the endogeneity of the social class variable. Our results show that among the four subgroups of the urban middle class, the new middle class is the only one to be relatively well-protected against obesity. We suggest that this group plays a special role in adopting healthier food consumption habits and seems to be at a more advanced stage of the nutrition transition.

An analysis of income polarisation in rural and urban China

The purpose of this article is to contribute to the analysis of Chinese income inequality by focusing more specifically on income polarisation, which captures both alienation (i.e. heterogeneity between income groups) and identification (i.e. homogeneity within groups). The empirical investigations conducted as part of this research are based on the China Health and Nutrition Survey data from 1989 to 2006 and indicate that Chinese household income is strongly polarised. After a period of stagnation between 1989 and 1997, the degree of polarisation increased significantly between 1997 and 2006, indicating the constitution of identified groups in middle and upper income ranges. Although the level of income polarisation is higher in rural areas, the increase in polarisation is far more conspicuous in urban areas, suggesting that the risk of social tensions is more pregnant in Chinese cities. The analysis of the sources of income polarisation in rural areas shows that the increase in polarisation is closely linked to non-agricultural opportunities. In urban areas the emergence of identified groups in middle and upper income classes can be explained both by the sharp decline in subsidies and by the liberalisation of the urban labour market and state enterprises.