Per Prof. Sheffi, global supply chain lacked enough monkeys to develop Covid vaccines. 

Isn't strange that the supply chain has dominated our news? It's strange because the overwhelming majority of us Americans hardly ever think of the supply chain. We order a product, it soon arrives. And if we want to touch and feel things, we go to the store and buy it - physically! But now, we have a supply chain crisis.  To better understand the wide-ranging impact of supply chain and supply chain history, we spoke with Mr. Yossi Sheffi, who is a professor at the Massachusetts Institute of Technology. 

Professor Sheffi is the Director of the MIT Center for Transportation & Logistics and also the Director of the MIT Supply Chain Management Program. He has written many books, including a 2020 book titled The New (Ab)Normal: Reshaping Business and Supply Chain Strategy Beyond Covid-19, and a 2021 book that was published just this week, titled A Shot in the Arm: How Science, Engineering, and Supply Chains Converged to Vaccinate the World. Professor Sheffi has advised many governments and leading manufacturing, retail and distribution enterprises, and he has also founded and co-founded five successful companies. 

This is the link to Professor Sheffi’s academic homepage, which lists his research and provides information for his many publications, projects and awards, is provided in the detailed caption of this episode: https://ctl.mit.edu/about/bio/yossi-sheffi