rivalry

Uber

Sidecar Co-founder Leaves General Motors for Uber

Jahan Kanna is switching from a Lyft partner to its corporate rival, Uber.

Should Uber and Lyft Get in the Carpool Lane Together? -- Start Up Your Day Roundup

Plus: Airbnb unveiled a way for neighbors to complain if hosts' guests get too rowdy.

7 Business Feuds With More Beef Than Kanye vs. Taylor

When money is involved, all bets are off.

3 Reasons to Be Grateful for Tough Competitors

Complacency often follows initial success. Competition pushes us to continue striving.

Rivalry: The Good, the Bad and the Ugly

Larry Bird vs. Magic Johnson. British Airways vs. Virgin Atlantic. Uber vs. Lyft. Rivalry can be either a powerful driver of achievement, or a force that leads to corruption and chaos.