Final answer:
Profit sharing or bonuses should be given for a time period that is relevant to the individuals in a firm and within the realities and constraints of the business.
Step-by-step explanation:
Profit sharing or bonuses are given to individuals in a firm as a way to incentivize and reward their performance. The time period for which these incentives are given should be relevant to the individuals in the firm and within the realities and constraints of the business.
This means that the time period should align with the goals and objectives of the company, as well as take into consideration the financial capacity of the business to provide these rewards.