Different courier companies structure their employee compensation packages differently. Some companies will strictly pay their employees on an hourly basis. Other's may subcontract drivers and allow their drivers to earn a commission based on the shipments that they carry. The only way that you can determine which payment structure your Detroit courier service is using is to ask someone at the company directly.
Often times the size of a company will dictate how they find it most profitable to structure themselves. When you have a small company that only does business within one local area, if often becomes more favorable for them to have full time employees that are paid an hourly wage. On the other hand, a company that is trying to build a nationwide network can find it much more convenient to use subcontracted commission paid drivers to create a wide spread coverage in their service.
Commission is something that a courier company may use to help attract the best drivers in the business. Like any other industry there is going to be a certain amount of competition between various companies to attract the best employees. The best and hardest working in any given profession are often attracted to commission based
jobs because they offer the best chance for them to earn a higher income.
The other good thing about using a courier that is paid on commission is the motivation that it is going to give them. When you are paid by the hour, there is often not palpable motivation to perform better, and to offer better customer service. On the other hand, a company that pays in commission is giving their employees a real motivational tool for the best performance possible. That is why many clients prefer to only use couriers that are going to ship on a commission based structure.
Don't be afraid to go directly to your courier and find out what kind of a payment structure that they have with their employees. Couriers are used to answering that question because they should realize that this is a logical way for courier company clientele to evaluate the services of a company. If you're interested in learning the way a courier pays their employees, this is probably a question that you will have to ask someone directly. It is not strictly speaking a marketing point of much use to them, so it is unlikely to be shown someplace like their website.