Earlier quoted context omitted.
You're overcomplicating it somewhat by separating things out that could reasonably just be averaged together. The real question is what the supply and demand curves look like. It's possible for everyone to make more money by reducing prices and making it up on volume, if that's what happens. If you're a driver and you currently spend a lot of time sitting around waiting for riders, and the lower prices reduce that wa…
I agree with you. I guess I'm asking how likely is the (quite appealing) scenario you describe? The volume increase will more than offset the price drop -- otherwise Uber would have no incentive to drop the price in the first place. What else do we need to know to predict the outcome on drivers pay?
It's generally easier to just try it and see what happens, and then deduce the how from the what. Note however that this will not necessarily be the same thing that happens in another area or at another time, because of all the things that can be different and affect the outcome.