They reflect the fact that their discipline comprises a diverse collection of models, and that matching reality to model is an imperfect science with a lot of room for error. It is better for the public to be exposed to this uncertainty than for it to be lulled into a false sense of security based on the appearance of certain knowledge.
经济学家间的分歧是有益的。这反映了一个事实：经济学是由多元化的模型组成的，匹配现实与模型是一项不完美的科学，很容易犯错。公众更应该直面这一不确定性，而不是沉溺于某些知识的外表所带来的虚假的安全感。