I’ve been thinking about demography a lot these days, particularly about the demographic dividend that Bangladesh is about to harvest (if right policies are in place) and Sr Lanka has partially harvested (and wasted). Actually, I’ve been thinking more about the demographic time bomb that is ticking in the form of a massive group of elderly retirees who will drag down not only their children in the working-age group but the entire economy. Sri Lanka’s current/projected life expectancy at birth 2006-11 Male 69.93 Female 75.70 2041-46 Male 73.