Final answer:
The broker's payment to the barber is a Reward for customer referrals, serving as a commission for directing new clients to the broker's business. This payment is not a wage for haircut services, office space rental, or a tip.
Step-by-step explanation:
The broker's payment to the barber for referring customers to him is best described as Reward for customer referrals. This finder's fee is not related to the compensation for haircut services nor the payment for office space, and it is not a tip for good service either. Rather, it is a form of commission for the barber for directing new clients to the broker's business. This practice is common in various industries where referrals can form a significant part of getting new business.
Considering the example provided, where the total cost with two barbers is calculated, it is important to differentiate between wages and finder's fees. The wage is the regular payment barbers receive for their haircut services, while the finder's fee is additional compensation for the specific action of referring new customers, which is separate from their standard wages and job duties.