". . . the broker doesn't send any type of summary statements to the agent?
Well, they are mandated to deliver the IRS Form 1099 to them.
And I am sure that some Brokers may have some form of fancy-schmancy document summarizing each Agent's earnings, and possibly ranking each individual Agent against one another.
But you know what? . . . . In this business, Agents develop a unique capacity for keeping track of every nickel they are owed . . . . even those that didn't do so well in Math suddenly develop a skill for Commission Accounting . . . . and they do so voluntarily.
And those that have no Sales will also hone their Commission Accounting skills so that they're really well prepared in and when they have a Sale that produces a Commission. It's amazing!