But there are real monopolies in this country, and three of them — Alphabet (i.e., Google), Amazon, and Facebook — control much of our online life. They are already showing anti-competitive ...

Facebook may be losing younger users, but Marketplace is keeping them hooked. Launched in 2016, it now has 1.1 billion users across 70 countries, competing with eBay and Craigslist. No listing fees ...

Deighton, John, and Leora Kornfeld. "Amazon, Apple, Facebook, and Google 2018." Harvard Business School Case 513-060, January 2013. (Revised June 2018.) (request a ...