suppose that there are two goods, x and y, that are competing for dominance in a market with network externalities. furthermore, suppose that the market has chosen good x even though it is inferior to good y and that the net benefits of switching from x to y are $20 while the costs of switching are $30. if the market stays with good x, then has occurred. if the costs of switching were to fall to $15 and the market still stays with good x then . group of answer choices no market failure; there will still be no market failure. market failure; no market failure has occurred. market failure; there will still be market failure. no market failure; market failure has occurred.