Research paper topic suggestions about compensation?

I’m writing a research paper for my human resources class. The professor left the topic very open. It should be about compensation and something that promotes discussion. I’m having difficulty narrowing down a topic

In mind, I wanted to do something about the pros and cons of seniority base pay. Perhaps pros and cons of seniority base pay in the navy. But my professor prefers mainly book resources, not just online, but the compensation information for the navy is found on online government sites.. so I’m not sure if it’s a good topic, or if it’s enough to write 10 pages on. I will ask her, but in the meanwhile, I’m still pondering other topics.

Some friends of mine have suggested pros and cons of Non commissioned members pay, and Commissioned members pay. Or even regular force pay vs reserve pay for the military.

But besides what I have in mind, do you flutherers have any topics that would have a lot of resources I can find in the library? I also have interest in police officers.. (either journals, books, etc)