Key points are not available for this paper at this time.
The research reported here has been supported by the Alfred P. Sloan Foundation, the John Simon Guggenheim Memorial Foundation, the Institute of Industrial Relations at the University of California at Berkeley, and the School of Management, University of Texas at Dallas. Charles O'Reilly provided useful advice on an earlier version of this paper. Other helpful suggestions came from James Baron, William Barnett, Christophe Boone, Michael Hannan, Maria Hasenhuttl, James March, Joel Podolny, Woody van Olffen, and Margarethe Wiersema.
Carroll et al. (Tue,) studied this question.