How does economic development lead to a change in occupational structure in a country?

Question

People is migrating from primary sector to secondary and tertiary sectors due to economic development of their own countries.

Answer 1

With an economic growth leads to changes in occupational structure, because there is technological impact:
- agriculture (primary sector) is more mechanized, therefore, less people are required to work in agriculture
- industry (secondary sector) is also more mechanichal, but because of the technological impact, there are also more industries, and therefore more jobs available.
- the availabily of service jobs increases

Answer 2

Occupational structure is affected by econ development because roles in the economy change, technology increases and people move to where the jobs are money are.