The antitrust laws are further complicated by the fact that many business practices can have a reasonable business justification even if they limit competition in some way.

• 反托拉斯法亦基于一个这样的事实而趋于复杂化。那就是许多商事行为虽然在某种程度上限制了竞争，但它们拥有正当的商事抗辩理由。