We're in a period of elevated inflation right now. But at least there's some good news: The price of nails is lower than it was in 1695. But how do we know what the price of nails was back then? And what can such a long-term look tell us about innovation in such a seemingly simple product? To learn more, we spoke with Dan Sichel, an economist at Wellesley College, who has recently published a paper on exactly this topic. We discussed how he did it and his overall approach to the project.
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