Explain the role of job descriptions in job advertising and recruiting.

A job description is generally given in a job advertisement or
listing as a way of specifying the duties that will be performed by the person who is hired.
These help potential applicants know if they are qualified, but they also help firms understand
better what qualities and skills they need in the new hire.

As the
link below tells us, a good job description will tell most or all of the following
things:

• The duties and responsibilites of the position
  being filled, so far as they are known.


• Requirements for education
  and experience.


• Salary and
  benefits.


• Required performance
  levels.


• Some information about the work
  environment.


• Information about the firm as a
  whole.

Providing a detailed and accurate job description
is important to a firm because it enables the firm to attract the most qualified possible
applicants.