Professor Groysberg's research focuses on the challenges of managing professional service firms. In particular, his work investigates how a firm can be systematic in achieving a sustainable competitive advantage by leveraging its employees. In a number of related papers, he examines how firms develop, hire, retain, and utilize star knowledge workers. By focusing on the performance of these highly skilled professionals, his research contributes to the human capital theory, the theory of allocation of talent, the theory of labor market competition, and human research management studies.