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Manipat Saimek


The purpose of this study was to examine the relationship between national income and life expectancy by the Granger Causality test. The annual secondary data of Brunei and Singapore from 2000 to 2018 are utilized by time series analysis. The data stability, the coefficient of ADF and KPSS at the significance level 0.05 at first order and the appropriate level of life expectancy lag length of male and female populations in Brunei and Singapore were tested. The result showed that the Granger Causality test accepted the main hypothesis (H0) as the economic growth (national income per capita) was not a cause of life expectancy of both countries. On the other hand, life expectancy was a cause of economic growth of male population of both countries.


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