Common, but illegal. https://www.ftc.gov/tips-advice/competition-guidance/guide-antitrust-laws/single-firm-conduct/predatory-or-below-cost https://www.ftc.gov/

Common, but illegal. https://www.ftc.gov/tips-advice/competition-guidance/guide-antitrust-laws/single-firm-conduct/predatory-or-below-cost https://www.ftc.gov/tips-advice/competition-guidance/guide-a...