But I think the opposite may legitimately be the intuition for people of generations before ZIRP and the notion of inventiveness when resources are scarce or you're simply out of work. You can see it in the themes of many movies and other media in the 80s and early 90s, too, the hero arc of the inventor down on their luck. I think the idea carried forward for people in their formative years then.
The hypothesis was that firms invest in innovation in busts, when the opportunity cost is lower.
The study finds that it’s nuanced and it depends on the industry. Too close to a boom, like an oil firm, and you face high opportunity costs, and innovate less during the boom. There is a sweet spot where you are near enough to benefit from higher capital but not too close to be crippled by opportunity costs