1. Should Walmart try to scale blockchain technology and use it for more than improving food safety? If so, why and how? 2. Should Walmart try to scale blockchain technology for all of its food products? If so, why and how? 3. How might Walmart ensure its suppliers adopt the practices necessary for blockchain to be successful? 4. For which stakeholders other than suppliers should Walmart demonstrate value via the blockchain project? 5. If blockchain technology reveals unethical or unsavoury practices in Walmart's supply chain, how should the company react?