time bulge वाक्य

उदाहरण वाक्य

1. Harvard University economists David Bloom and Jeffrey Williamson assert in a new study that as much as a third of East Asia's economic boom from 1965 to 1990 can be explained by a dramatic change in the region's population mix : A huge but one-time bulge in the working-age population, relative to the number of children and elderly dependents.