Jobs focused on providing services are part of the economic sector.

Jobs focused on providing services are part of the tertiary economic sector.

Explanation:

There are four economic sectors. Primary, secondary, tertiary, and quaternary are the sectors and all of them have their own unique set of characterisitcs that define them from the others. The primary one is characterized by working with or extracting natural resources, the secondary one with manufacturing and construction, the tertiary with providing services, and the quaternary involvement in ICT and research development.

The tertiary sector dominant in two types of societies, one being the highly developed societies, while the other being societies that are heavily dependent on tourism and banking. This is due to the high utilization of technology in every economic sector, so less labor force is needed for the primary and secondary sectors, thus the tertiary gets the majority of the labor force (in the highly developed societies). In societies that are heavily dependent on tourism and banking, it is simply a must for the population to be involved in this sector, as they have focused on this because of a lack of natural resources and potential for manufacturing.