Occupational structure refers to the distribution of the workforce among different sectors of an economy. It provides information about the composition and characteristics of the labor force in terms of the types of jobs people have and the sectors in which they are employed.

Distribution of Workforce Among Different Sectors:
The occupational structure of a country indicates how the labor force is distributed across various sectors such as agriculture, industry, and services. This distribution can vary significantly among countries and can change over time as economies develop and evolve.

Agriculture Sector:
In many developing countries, a significant portion of the workforce is engaged in agriculture. This is often due to the predominance of subsistence farming and the lack of opportunities in other sectors. The agricultural sector typically includes activities such as farming, forestry, and fishing.

Industrial Sector:
As economies develop, the industrial sector tends to grow, and more people are employed in manufacturing and other industrial activities. This sector encompasses activities such as manufacturing, construction, and mining. The industrial sector plays a crucial role in the economic growth and development of a country.

Service Sector:
With further economic development, the service sector becomes increasingly important. This sector includes activities such as retail, transportation, finance, healthcare, education, and hospitality. The service sector is often characterized by a higher level of skill and specialization compared to other sectors.

Shifts in Occupational Structure:
As countries undergo economic transformation, there is often a shift in the occupational structure. This shift is commonly referred to as structural transformation or the process of moving from an agrarian-based economy to an industrial and then a service-based economy. This shift is driven by various factors such as technological advancements, changes in consumer demand, and globalization.

Implications of Occupational Structure:
The occupational structure has implications for various aspects of the economy, including employment, productivity, and income distribution. The distribution of the workforce among different sectors can affect the overall level of employment and the types of jobs available. It can also impact productivity levels, as different sectors have different levels of efficiency and technological advancement. Furthermore, the occupational structure can influence income distribution, as certain sectors may offer higher-paying jobs compared to others.

In conclusion, occupational structure refers to the distribution of the workforce among different sectors of an economy. It provides valuable insights into the composition and characteristics of the labor force and plays a crucial role in understanding the economic development and transformation of a country.