♪ >> reporter: the unicorn bubble burst. the longest u.s. auto strike in 50 years. the tech backlash and the u.s.-china trade war. these are the top business stories of 2019. number nine, fake meat starts a real food revolution. this year, corporate america and foodies went wild for plant-based protein. and two companies drove the craze. beyond meat and impossible foods, inking deals with big-name chains. >> burger king will begin selling meatless whopper. >> reporter: beyond meat's massive wall street debut -- >> 163% spike -- >> reporter: and demand so high impossible foods briefly ran out of burgers. plant-based meat appeals to consumers worried about their own health and the environment. number eight, amazon abandons plans for a new york headquarters. in 2017, ceo jeff bezos and amazon launched a highly publicized bidding war. >> amazon is shopping for a