https://www.cnbc.com/2019/04/15/cramer-you-must-study-up-on-the-amazon-effect-before-buying-any-stock.html > Investors should factor the Amazon effect into their stock-picking homework because the company is a "Death Star" that could disrupt any industry it decides to set its gaze on, CNBC's Jim Cramer said Monday. > "Any company with any kind of consumer product could potentially end up in their crosshairs, and that's a very dangerous place to be," the "Mad Money" host said.