期刊名称：Discussion Papers / Ibero America Institute for Economic Research (IAI)
出版年度：2007
卷号：2007
出版社：Ibero America Institute for Economic Research
摘要：This paper contributes towards the growing debate concerning the world
distribution of income and its evolution over that past three to four decades.
Our methodological approach is twofold. First, we formally test for the number
of modes in a cross-sectional analysis where each country is represented by one
observation. We contribute to existing studies with technical improvements of
the testing procedure, enabling us to draw new conclusions, and an extension of
the time horizon being analyzed. Second, we estimate a global distribution of
income from national log-normal distributions of income, as well as a global
distribution of log-income as a mixture of national normal distributions of
log-income. From this distribution we obtain measures for global inequality and
poverty as well as global growth incidence curves.
关键词：Convergence, Silverman's test, non-parametric statistics, bimodal, global income
distribution, poverty, inequality, growth incidence curves
