Fight for $15

• It's one thing for a profitable industry like fast-food to absorb increased costs, but much more challenging for companies without a capital cushion. At the very least, growth could slow.
• There also is talk of unionization, particularly as on-demand workers rarely have benefits like health care or advance knowledge of rate reductions. It is a tough hill to climb, however, as on-demand workers don't share a common facility, directory or other central means of organization.

Go deeper:

• The new gig: America's hidden economy
• Chart: On-demand economy workers
• Rethinking work and safety nets