He continued to study in the United States at Stanford University, where in 1993, he received his MA in sociology.
The next year, in 1994, he also received his PhD with a thesis entitled Patterns of Competition: The Diffusion of Adoption and Abandonment of Radio Broadcasting Strategies under supervision of James G.
In 2002, he moved back to Norway, where he was appointed as professor at the Norwegian School of Management.
In 2007, he moved to INSEAD, where he became professor of entrepreneurship and chair in organization and management theory.
[3] Greve has authored and co-authored numerous publications in his field of expertise.