首页|Convergence Analysis of the Sanitation Index for 158 Countries
Convergence Analysis of the Sanitation Index for 158 Countries
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Since 1990,2.1 billion people in the world gained access to improved sanitation by 2015.However,2.4 billion people still did not use a basic toilet.We examined whether the country differences in the sanitation index existing in 1990 had narrowed.We deployed convergence methodology to answer the questions for 158 countries.Results of our analysis indicate that the sanitation indexes for 158 countries were converging toward a rapid reduction of dispersion and a moderate catch-up.The speed of dispersion reduction was led by the upper middle income group,together with the South Asia region.The speed of catch-up was led by the low income group and the East Asia Pacific region.The policy implication from this study is that individual countries should be guided by the speeds of catch-up and dispersion reduction estimated from the appropriate subgroup where they belong for evaluating their future progress.
Sanitation indexMillennium development goalsConvergences analysisGamma index
YuSang Chang、Yoo-Taek Lee、Yoonji Lee、MyungHoon Jin
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College of Business and Economics,Gachon University
Questrom School of Business,Boston University
Frederick S.Pardee School of Global Studies,Boston University
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NSTL
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