Gunathilaka, G.Y.N.
(International Conference on Applied Social Statistics (ICASS) - 2019, Department of Social Statistics, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2019)
Increase in life expectancy and the decline in fertility rate increase the elderly population in a country making an imbalance in the population pyramid. By the year 2050 approximately two billion people will be aged 60 ...