Second, it is argued that delivery is a natural monopoly and that legal protection is necessary to prevent cream skimming and thereby to maximize the benefit of the universal delivery system.
Legal protection is not necessary to prevent cream skimming.
mnli hypothesis: Legal protection is not necessary to prevent cream skimming. premise: Second, it is argued that delivery is a natural monopoly and that legal protection is necessary to prevent cream skimming and thereby to maximize the benefit of the universal delivery system.