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Reference

Barker, J. M., E. C. Falcone, Y. S. Yang-Sun, and T. Yan. 2025. “ Ch-Ch-Ch-Ch-Changes: The Impact of Supply Base Growth, Contraction, and Turnover on Firm Innovation.” Journal of Operations Management 1–21. https://doi.org/10.1002/joom.70030.

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Welcome to Revise and Resubmit 🎙️—the podcast where academic papers stop whispering from PDFs and start talking directly to your strategic brain.

Today, we’re spinning the record on a paper with a title that already has a rhythm:
“Ch-Ch-Ch-Ch-Changes: The Impact of Supply Base Growth, Contraction, and Turnover on Firm Innovation” 🎶
by Jordan M. Barker, Ellie C. Falcone, Yang Sophie Yang-Sun, and Tingting Yan.

This isn’t just any article. This work is published in the Journal of Operations Management—yes, that Journal of Operations Management—a truly prestigious outlet sitting proudly on the FT50 journal list 🏆. When a paper makes it there, it’s not just another citation—it’s a signal flare for serious scholars, sharp practitioners, and anyone who cares about how firms actually compete and innovate.

Think about today’s supply chains: regulations shifting 🧾, sustainability pressures rising 🌱, markets appearing and disappearing 🌍, and key inputs getting disrupted ⛓️. The old advice said: “Lock in your suppliers. Keep things stable. Don’t rock the boat.” But this paper asks: what if rocking the boat is exactly what sparks innovation?

Here, the authors slice supply base change into three sharp angles:

• Growth 📈: adding more suppliers—opening more doors, more ideas, more options.

• Contraction 📉: cutting suppliers—tightening, focusing, streamlining.

• Turnover 🔄: swapping suppliers—some leave, some arrive, the cast is constantly changing.

Using data from 2010 to 2018, they show that growing your supply base actually boosts innovation performance 🚀. Cutting it? Surprisingly, that has no significant statistical association with innovation—neither hero nor villain. But the real plot twist is turnover: it doesn’t behave in a straight line. A little bit of change—some churn, some fresh blood—initially lifts innovation 🔥, but push that turnover too far and it starts to hurt innovation 📉. It’s an inverted U: too little change, you stagnate; too much, you break.

So this research flips the usual story. Supply base instability isn’t just a threat to be minimized; it’s a multi-dimensional, risky-but-powerful engine that can either fuel breakthroughs or burn the firm if overdone. Supply managers are nudged to embrace change—carefully: see growth as opportunity, treat moderate turnover as a creative spark, and beware the chaos of excessive churn.

🎧 If you enjoy deep dives like this—where rigor meets relevance, and FT50 research gets unpacked for your weekend brain—make sure to subscribe to “Revise and Resubmit” on Spotify, and hit that follow button on our YouTube channel “Weekend Researcher” 📺. You can also find this podcast on Amazon Prime and Apple Podcast—so wherever you listen, your next research fix is just one tap away.

Huge th