Employers will often provide such perks as health insurance and paid vacation that are designed to be attractive and useful to employees. Collectively these perks are known as:

employee benefits.

Explanation:

Employers will often provide such perks as health insurance and paid vacation that are designed to be attractive and useful to employees. Collectively these perks are known as employee benefits.

They are typically incentives that are being introduced by employers of labor so as to enhance their welfare and by extension to encourage them to put in their best in their respective duties, roles or job functions.

answer; ///(d); determining who competes most closely   with whom evaluating whether industry driving forces and competitive pressure favor some strategic groups and hurt others, and ascertaining whether the profit potential of different strategic groups varies due to the strengths and weaknesses in each groups respective market positions;

answer; experimentation;