Concept:The per capita GDP of a nation is determined by the collective influence of demographic structure, labor force participation, and worker efficiency.
Explanation:The proportion of the population within the working-age bracket directly affects the potential labor pool.
A larger working-age share can boost overall output if these individuals are employed, thereby raising per capita GDP.
This makes statement 1 correct.
The work participation rate measures the fraction of the population actively employed or seeking work.
A higher participation rate indicates more people contributing economically, which increases total output and per capita GDP.
This makes statement 2 correct.
Per worker productivity measures the average output generated by each employed person.
Higher productivity means each worker produces more goods and services, raising national output and per capita GDP.
This makes statement 3 correct.
Thus, all three factors—working-age proportion, work participation rate, and per worker productivity—are essential determinants.
Answer:D. 1, 2 and 3