The movement of labour from one grade to an entirely different grade is an example of?

The movement of labor from one grade to an entirely different grade is an example of "vertical occupational mobility." This means that an employee is moving up or down the career ladder, changing job positions from a lower-level to a higher-level or vice versa. For example, an entry-level employee in a company might get promoted to a higher-level position, such as a manager, through their hard work and skills. On the other hand, an employee may be demoted to a lower-level position if they fail to meet the expectations or qualifications required for their current job. Vertical occupational mobility is different from "horizontal occupational mobility," which refers to the movement of workers within the same job grade or occupation. "Industrial labor mobility" refers to the movement of workers from one industry to another, and "geographical mobility" refers to the movement of workers from one geographic location to another for employment.