Riders don't set the rates, no... but I'm not sure what that has to do with a free market.
[0] - http://www.forbes.com/sites/andrewbender/2015/04/10/ubers-as...
> Uber is arguably the #1 regulatory power in the U.S. personal transportation sector.
I would reserve the phrase "regulatory power" to government. I think you're using it here for the hyperbolic value.
I am being snarky, but the libertarian poster-child is shielding 46% of the national market from competition (drivers can't compete with eachother) and that's pretty ironic.
> A free market is a market system in which the prices for goods and services are set freely by consent between vendors and consumers, in which the laws and forces of supply and demand are free from any intervention by a government, price-setting monopoly, or other authority.
Uber is a price-setting monopoly within the Uber market. Uber is the sole authority in the prices that consumers pay and that drivers receive.
The Uber marketplace is NOT a free market. QED. Its rent-seeking behavior on behalf of the owners.
Consider a counterexample - eBay is clearly a market. Independent buyers and sellers agree to transactions, on their own terms. eBay competes for the attention of both buyers and sellers, in terms of service and fees, not on the prices of the actual goods in the market.
If the competition that's happening in the transportation market is between Uber and Lyft, and that competition is on the price of rides and quality of rides, then Uber isn't a market, it's a vendor in a market - and thus the drivers aren't vendors within Uber's market, they're just employees of Uber.