Once upon a time, there were three big truck engine makers in the U.S.: Caterpillar, Cummins, and Detroit. A couple of truck makers, like Mack and Volvo, offered their own engines. You ordered a truck ...

For decades, vertical integration meant ownership. According to Michael E. Porter's seminal work Competitive Advantage: Creating and Sustaining Superior Performance, companies sought to reduce costs, ...

Weinzierl, Matthew C., Brendan L. Rosseau, and Jack Goodwin. "Relativity Space, Vertical Integration, and Additive Manufacturing's Role in Space." Harvard Business School Case 724-031, January 2024.