Which of the following situations would create the largest gap between the age-based dependency ratio and the actual dependency burden?

A country with high unemployment and widespread underemployment among the working-age population

The correct answer is Option 3: A country with high unemployment and widespread underemployment among the working-age population

The gap between the age-based dependency ratio and the actual dependency burden widens when many people who belong to the working-age group are unable to find productive work. Although they are counted as potential workers in the age-based measure, they function more like dependents in economic terms because they do not earn sufficient income.

Option 1: A country with low unemployment and high labour-force participation — Incorrect. In such a situation, the age-based ratio and actual dependency burden would be quite similar.

Option 2: A country where most working-age people are productively employed — Incorrect. Productive employment reduces the gap between the two measures.

Option 4: A country experiencing a decline in the proportion of children — Incorrect. This affects the age-based dependency ratio itself but does not necessarily create a gap between age-based and actual dependency.

NCERT: "The difference between the two is determined by the extent of unemployment and underemployment, which keep a part of the labour force out of productive work. This difference explains why some countries are able to exploit the demographic advantage while others are not."