Which of the following factors can lead to a “youth bulge” in a country?
1. Declining birth rates over the past decades
2. Decrease in life expectancy
3. High fertility rates in the past decades
4. Declining infant mortality rate
Select the correct answer using the code below:
(a) 1 and 2 only
(b) 3 and 4 only
(c) 2 and 4 only
(d) 1, 3, and 4
Explanation
A “youth bulge” refers to a situation where a significant proportion of the population is young, typically under 30 years old. This phenomenon is closely tied to the demographic transition and can have significant social, economic, and political implications.
Statement 1 is not correct: A youth bulge typically results from high fertility rates in the past, not declining birth rates. If fertility rates decline, the proportion of young people in the population decreases over time.
Statement 2 is not correct: A decrease in life expectancy does not contribute to a youth bulge. In fact, a lower life expectancy would generally mean fewer elderly people, but it does not directly influence the proportion of young people.
Statement 3 is correct: High fertility rates in the past decades are one of the most significant contributors to a youth bulge. When a country has high fertility rates, it means that a larger number of children are being born, leading to a larger proportion of young people in the population.This is often seen in developing countries, especially in regions of Africa, Asia, and Latin America, where fertility rates have historically been high. These countries experience rapid population growth, and as a result, the proportion of young people (under 30 years of age) becomes significantly larger than other age groups.
Statement 4 is correct: Declining infant mortality rates mean that more children are surviving into adulthood. In the past, high infant mortality rates (the number of children who die before reaching one year of age) were a major factor that kept the proportion of young people relatively low in many societies. However, as medical advancements and improved living conditions reduce infant mortality, more children survive, contributing to a larger youth population.
As countries experience declining infant mortality, the survival rate for children increases, and the number of young people in the population grows. This, in turn, contributes to a youth bulge because the young population increases in both number and proportion to the overall population.
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