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Hacker News 讨论
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- apodolny
> "To keep the trend honest we computed it on a fixed panel of 594 companies that appear in our data every year, 385k reports in total, so the decline you see is the same companies getting stingier." Isn't there a selection bias here? The average tech company that has stayed in business since 2015 presumably grew quite a bit and can now be choosier.