Services are more important and higher in demand with a wider scope. Hence, as a country develops on, it is observed that the Tertiary sector begins to contribute more to the GDP than the Secondary or Primary sectors. So, normally a Tertiary economy is more developed than a Primary economy.

The tertiary sector, also known as the service sector, plays a crucial role in an economy and is considered more important than the primary and secondary sectors. Here's a detailed explanation of why the tertiary sector is significant:

1. Definition and Scope:
The tertiary sector includes a wide range of services such as banking, healthcare, education, transportation, tourism, entertainment, and many others. It focuses on providing intangible goods and services rather than physical products.

2. Contribution to GDP:
The tertiary sector typically contributes the most to the Gross Domestic Product (GDP) of a country. As economies develop, there is a shift from primary activities (agriculture, mining) to secondary activities (manufacturing, industry), and finally to tertiary activities. This shift reflects the growing importance of the service sector in generating economic value.

3. Employment Generation:
The tertiary sector is a major source of employment opportunities. With the advancement of technology, the primary and secondary sectors have become more mechanized, leading to a decline in their labor-intensive nature. On the other hand, the service sector heavily relies on human skills and expertise, creating a vast number of jobs.

4. Income Generation:
The tertiary sector often provides higher-paying jobs compared to the primary and secondary sectors. Skilled professionals in areas like finance, healthcare, and information technology command higher salaries due to their specialized knowledge and expertise. This translates into increased income levels and improved standards of living for individuals.

5. Innovation and Technology:
The service sector is known for its constant innovation and adoption of new technologies. This not only enhances the efficiency and quality of services but also drives overall economic growth. Technological advancements in fields like telecommunications, e-commerce, and software development have enabled the emergence of new service-based industries, contributing to economic expansion.

6. Interdependence:
The tertiary sector is closely interconnected with the primary and secondary sectors. It relies on raw materials, infrastructure, and manufactured goods provided by the other sectors. For instance, the tourism industry relies on transportation (secondary sector) and attractions like natural landscapes (primary sector). This interdependence ensures a balanced and holistic development of the economy.

7. Economic Stability:
The tertiary sector offers stability to an economy as it is less vulnerable to natural disasters, price fluctuations, and resource availability issues compared to the primary and secondary sectors. This stability helps to cushion the impact of economic downturns and provides a more consistent source of revenue.

In conclusion, the tertiary sector is vital for economic growth and development. Its contribution to GDP, employment generation, higher incomes, innovation, interdependence with other sectors, and economic stability make it more important than the primary and secondary sectors. The continued expansion and improvement of the service sector are crucial for the overall well-being and prosperity of an economy.