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Income Generation in the African and Coloured Population: Three essays on the origins of household incomes in South Africa

by Dieden, Sten, PhD

Abstract (Summary)
The dissertation comprises three empirical analyses focusing on the origins of South African households? income sources. The income sources are categorized to reflect the households? varying extent of economic core sector integration. All three chapters contain analyses of household survey data from 1995 and focus on the African and coloured population. Chapter 1 explores the extent to which inequality in a sample African and coloured individuals can be attributed specific labour-market related characteristics of their households or household heads. The analyses apply the Theil-L measure of inequality to the distribution of a consumption bundle. The education level of household heads is the strongest single explanatory factor, followed by households? main income sources. The race, age categories, or gender of household heads do not account for large fractions of inequality in this sample. Chapter 2 utilizes the income source categories to investigate whether these can contribute to explain inter-household variation in income sources can explain variation in income levels. The results from the estimation of three reduced form models are compared. All three models have households? log-income levels as dependent variables and share a set of household characteristics as explanatory variables. Two of the models are two-stage specifications that use provincial locations as instruments for income source categories. The third specification contains no income source variables but includes provincial locations as explanatory variables. The results show that, as compared to the specification with provincial locations, income sources can be incorporated as explanatory variables into multivariate regression analyses without considerable loss of explanatory power. Controls for endogeneity must however be applied. The partial impacts from income sources are statistically significant and their signs are in accordance with expectations. The results also suggest that households in different main income source categories differ systematically in their demographic and educational endowments. In Chapter 3 the sample is restricted to the African and coloured households that have a main income source. The analyses aim to identify household level characteristics that are associated with differing extents of core sector integration. Two separate multinomial logit models are estimated, for urban and non-urban households respectively. The output from the analysis is utilized to compute the probabilities for a household having a main income source from either one of five categories. The results indicate that prominent covariates of low core-economy integration are earners of income with low levels of education, of female gender, and of either old or of young of working-age. A non-urban household?s location in either a former ?homeland? or in an agriculturally or commercially developed area also yields disparate implications for the main income so
Bibliographical Information:

Advisor:

School:Göteborgs universitet

School Location:Sweden

Source Type:Doctoral Dissertation

Keywords:SOCIAL SCIENCES; Business and economics; Economics; Africa; South Africa; household incomes; income sources; inequality; labour; unemployment; core; periphery; multinomial logit; endogeneity

ISBN:91-85169-02-1

Date of Publication:01/01/2005

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