Nova: Imagine you're a smartphone manufacturer. You've just been told by regulators that you're now responsible for every phone you've ever sold, even after the customer throws it away. You have to collect it, recycle it, and pay for all of it. What do you do? Do you make your phone easier to recycle? Or do you make it last longer so fewer come back? Those two goals, it turns out, can pull in completely opposite directions. And that tension is at the heart of today's conversation.

Nova: Exactly. And one of the foremost thinkers helping us navigate this tension is Dr. Atalay Atasu, a chaired professor at INSEAD and a leading voice in sustainable operations management. He's contributed foundational chapters to the research-based textbook Sustainable Supply Chains and also edited his own volume called Environmentally Responsible Supply Chains. His work sits right at the intersection of business operations, environmental regulation, and hard economics.

Nova: I'm Nova.

Nova: Fair point. The textbook Sustainable Supply Chains, edited by Bouchery, Corbett, Fransoo, and Tan, defines it around the triple bottom line. That means you're not just optimizing for profit. You're simultaneously accounting for economic, environmental, and social outcomes. And here's the crucial part they emphasize: sustainability is multidimensional and measurement is everything. You can't manage what you can't measure.

Nova: Yes. Part one is entirely devoted to life cycle assessment, carbon footprinting, water footprinting, non-renewable materials management, and sustainability reporting. Before any company can claim to have a green supply chain, they need to know the actual environmental impact of every link in that chain, from raw material extraction to end-of-life disposal.

Nova: It is complicated, and that's exactly the point. One of the book's editors, Charles Corbett from UCLA, has argued that as firms become more tightly coupled in global supply chains, the risks and opportunities associated with activities upstream or downstream increasingly affect their own well-being. You can't just look at your own factory. You have to look at your suppliers, their suppliers, your distributors, and what happens after the customer is done with your product.

Nova: Huge. And it's one of the foundational principles of the entire book. Sustainability doesn't happen inside the four walls of your company. It happens across dozens, sometimes hundreds, of organizations working together.

Nova: His core insight, and this runs through a lot of his research, is that how you implement an environmental regulation matters as much as the regulation itself. Even the most well-intentioned policy can create perverse incentives if you don't think through the operational details.

Nova: Let's talk about Extended Producer Responsibility, or EPR. This is the policy that says producers are responsible for their products at end of life. It started in Europe in the 1990s and has spread globally. The assumption was simple: if you force manufacturers to pay for recycling, they'll design products that are easier to recycle. But Atasu and his collaborators found some serious cracks in that logic.

Nova: Here's a big one. In a 2019 paper with Esenduran and Van Wassenhove, Atasu looked at what happens when e-waste becomes valuable. See, EPR was built on the assumption that recycling electronics is a net cost. But advances in recycling technology and rising precious metal prices meant that recyclers could actually make a profit recovering gold, silver, and copper from old electronics.

Nova: Exactly. And that creates a competitive marketplace. Independent recyclers, who aren't subject to EPR obligations, start competing with the manufacturers for this valuable e-waste. The shocking finding? Stringent take-back regulation that only counts what the manufacturer recycles, and ignores what independent recyclers handle, can actually reduce total landfill diversion.

Nova: It is. The mechanism is subtle. When manufacturers face aggressive collection targets, they may try to lock up the supply of end-of-life products to meet those targets. But independent recyclers, who might actually be more efficient at recycling, get squeezed out. The net result: less total material gets recycled than if you had just let the market work.

Nova: Well put. And Atasu's chapter in Sustainable Supply Chains really hammers home this point: looking through an operational lens should be an essential component of designing environmental regulation.

Nova: This is one of Atasu's most fascinating research findings, from a paper with Ximin Huang and Beril Toktay on design implications of EPR for durable goods. When a manufacturer faces take-back regulation, they have two levers. They can design for recyclability, making the product easier and cheaper to recycle. Or they can design for durability, making the product last longer so fewer units come back for recycling in the first place.

Nova: Often, yes. Think about it. Making something super recyclable might mean using fewer materials, simpler construction, easier disassembly. But making something super durable might mean using complex composites, permanent fasteners, integrated components. A product that's built like a tank is often hard to take apart. A product that's easy to take apart may not be as robust.

Nova: That's the subtle part. Huang, Atasu, and Toktay found that seemingly similar policy levers, specifically recycling targets versus collection targets, can push manufacturers in completely opposite directions. A recycling target might encourage design for recyclability. But a collection target might push a firm toward durability instead, since making products last longer naturally reduces the volume coming back.

Nova: That's exactly right. The system-level outcome can be worse even when the regulation looks tougher on paper. Atasu and his co-authors argue that policymakers need to understand these design trade-offs and not just blindly turn up the dial on one metric.

Nova: Great question. Under individual producer responsibility, or IPR, each manufacturer handles its own end-of-life products. Under collective producer responsibility, or CPR, all manufacturers pool their resources into a shared system. Think of it as the difference between each brand running its own recycling program versus all of them contributing to a single national scheme.

Nova: That's the widespread assumption, and it's why most countries use collective systems. But Atasu's research with Gui, Ergun, and Toktay uncovered a critical trade-off. Collective systems are indeed more cost-efficient. But they can mute the incentive for individual companies to design better products.

Nova: Exactly. It's the classic free-rider problem. If the recycling costs get split across all producers, an individual company's design improvements barely move the needle on their own bill. So the incentive to innovate on design evaporates.

Nova: Atasu's research suggests that a cost allocation mechanism that satisfies both effective design incentives and voluntary participation only exists under very specific conditions related to the recycling infrastructure and the capacity mix relative to return volumes. Otherwise, you face a genuine trade-off. You either accept collective systems for their cost efficiency at the expense of weaker design incentives, or you push for individual responsibility knowing it might be more expensive.

Nova: You've done your homework. He essentially argues that all three of these assumptions are more nuanced than people think. Sometimes design for environment isn't the right primary goal. Sometimes collective systems can be designed to preserve incentives. And sometimes stricter rules backfire. It's a call for much more careful, operationally informed policy design.

Nova: In 2018, Atasu wrote a piece for Harvard Business Review about the EU's Circular Economy Package. His message was practical and urgent. Many companies face serious challenges executing circular economy strategies. They lack access to used products. They can't refurbish or recycle cost-effectively. They haven't figured out the reverse logistics.

Nova: Exactly. And Atasu's point is that the operational nuts and bolts, the actual supply chain design for reverse flows, is where most strategies fail. The book Sustainable Supply Chains dedicates entire chapters to this: closed-loop supply chains by Abbey and Guide, green logistics by Blanco and Sheffi, green facility location, green inventory management. These are not soft topics. They're hardcore operations management.

Nova: Yes. Twenty-two chapters covering everything from measuring environmental impacts to the social dimensions of sustainability, including cross-sector partnerships with NGOs. The scope is enormous. And what's interesting is that the editors themselves admit in the introduction that the book should perhaps be called something like Gradual but Never-Ending Paths Toward Less Unsustainable Supply Chains.

Nova: It reflects the research reality. There are no silver bullets. Every intervention has trade-offs. Atasu's work embodies this perfectly. Whether it's the durability-recyclability tension, the collective-individual responsibility dilemma, or the unintended consequences of regulation in competitive markets, the lesson is the same: you have to think systemically, measure carefully, and expect surprises.

Nova: That's a tough pill to swallow, but it underscores why rigorous research matters. Without these kinds of studies, policymakers would keep turning up the dial assuming it always helps. Atasu's work shows that the relationship between regulation and outcomes is often U-shaped or even inverted. More is not always better.

Nova: Let me offer three. First, sustainability is inherently a supply chain issue. You can't green your company without greening your entire network, upstream and downstream. Measurement across that network, through tools like life cycle assessment and carbon footprinting, is the essential first step.

Nova: And third: there are genuine trade-offs that can't be wished away. Design for recyclability versus design for durability. Cost efficiency versus innovation incentives. Stringent regulation versus market-driven recycling. Sustainable supply chain management is not about finding perfect solutions. It's about navigating these tensions intelligently.

Nova: And that's exactly what the textbook Sustainable Supply Chains provides: a research-based foundation for doing that rethinking. It's not a how-to manual with easy answers. It's a toolkit for asking better questions.

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