Effects On Age Structure
The decline in death rate and birth rate that occurs during the demographic transition leads to a radical transformation of the age structure. When the death rate declines during the second stage of the transition, the result is primarily an increase in the child population. The reason is that when the death rate is high (stage one), the infant mortality rate is very high, often above 200 deaths per 1000 children born. When the death rate falls or improves, this, in general, results in a significantly lower infant mortality rate and, hence, increased child survival. Over time, as cohorts increased by higher survival rates get older, there will also be an increase in the number of older children, teenagers, and young adults. This implies that there is an increase in the fertile population which, with constant fertility rates, will lead to an increase in the number of children born. This will further increase the growth of the child population. The second stage of the demographic transition, therefore, implies a rise in child dependency.
Read more about this topic: Demographic Transition
Famous quotes containing the words effects on, effects, age and/or structure:
“Corporate America will likely be motivated to support child care when it can be shown to have positive effects on that which management is concerned about—recruitment, retention and productivity. Indeed, employers relate to child care as a way to provide growth fostering environments for young managers.”
—Dana E. Friedman (20th century)
“One of the effects of a safe and civilised life is an immense oversensitiveness which makes all the primary emotions somewhat disgusting. Generosity is as painful as meanness, gratitude as hateful as ingratitude.”
—George Orwell (1903–1950)
“If the nineteenth century was the age of the editorial chair, ours is the century of the psychiatrist’s couch.”
—Marshall McLuhan (1911–1980)
“When a house is tottering to its fall,
The strain lies heaviest on the weakest part,
One tiny crack throughout the structure spreads,
And its own weight soon brings it toppling down.”
—Ovid (Publius Ovidius Naso)