As a child, you were told not to speak to strangers, but as an adult, you can share almost everything with strangers: cars, homes, bicycles, movies, music, and more.

It's called the sharing economy and this seemingly altruistic shift is big business.

As PricewaterhouseCoopers predicts in its 2015 report, companies that adhere to the sharing economy's business model of access over ownership have the potential to increase global revenues from roughly $15 billion today to about $3 ... Read more »