The point is not “to reach a consensus about which model is right,” as Romer puts it, but to figure out which model applies best in a given setting. And doing that will always remain a craft, not a science, especially when the choice has to be made in real time.
但对于这轮新批判，有一些令人不安的潜台词需要澄清——并且拒绝。经济学不是那种存在放之四海而皆准的真理模型的科学。问题不在于“达成关于哪个模型是对的的共识”（罗默语），而是指出哪个模型最适合给定的条件。而这样做永远带有一些艺术而非科学的成分，特别是不得不实时做出决定的时候。