Key Points

Tertiary activities are related to the service sector and involve providing special skills in exchange for payments. They focus on the commercial output of services rather than the production of tangible goods.

In the initial stages of economic development, most people work in the primary sector. In a developed economy, the majority of workers are employed in the tertiary sector.

The main difference is that tertiary services rely on specialized skills and knowledge of workers, whereas secondary activities depend more on production techniques, machinery, and factory processes.

The major types of tertiary activities include trade and commerce, transport, communication, and various other services like health, education, and law.

Trade is the buying and selling of items produced elsewhere, intended for profit. Trading centers can be divided into rural marketing centers and more specialized urban marketing centers.

Retail trading involves selling goods directly to consumers, while wholesale trading constitutes bulk business through intermediary merchants and supply houses.

Transport is a service that physically carries people, materials, and manufactured goods from one location to another. Transport distance can be measured in kilometers, time, or cost.

These services involve the transmission of words, messages, facts, and ideas. Modern developments like mobile telephony and the internet have made communication independent of transport.

Tourism, travel for recreation, has become the world's single largest tertiary activity in terms of total jobs and revenue. Major attractions include climate, landscape, history, and culture.

Medical tourism combines medical treatment with international tourism. India has emerged as a leading country in the world for providing medical services to overseas patients.

Quaternary activities are a knowledge-oriented sector focused on the collection, production, and dissemination of information. They include services like research, development, and information-based consultancy.

Quinary activities are performed by the highest level of decision-makers and are often called 'gold collar' professions. They focus on the creation, interpretation, and evaluation of new ideas and technologies.

Outsourcing involves giving work to an outside agency to improve efficiency and reduce costs. It has created new jobs in countries where cheap and skilled workers are available.

Knowledge Process Outsourcing (KPO) is distinct from Business Process Outsourcing (BPO) because it involves highly skilled workers and is information-driven knowledge outsourcing, such as R&D and legal services.

The digital divide refers to the uneven distribution of opportunities from Information and Communication Technology (ICT) across the globe. This gap exists both between developed and developing countries and within countries themselves.