"Race-to-the-bottom" might lead to "winner-take-all"? Eventually the profit margin is so thin that only the biggest companies can survive. In other words, once

"Race-to-the-bottom" might lead to "winner-take-all"? Eventually the profit margin is so thin that only the biggest companies can survive. In other words, once you have a "race-to-the-bottom" situation, it's hard for newcomers to get in the game.