Yes, I think people make errors of judgement. I also think the &#x27;path dependency&#x27; mentioned in another comment exists. I also think, as another poster mentioned, there are strategic reasons to ensure a balance of industries in your economy.<p>I think the comparative advantage model remains a compelling starting point despite all this.<p>But it doesn&#x27;t matter what I think, the key thing is that many people who actually do make decisions use the comparative advantage model.