Abstract
Data on Silicon Valley law firms over a 50-year period were used to study the genealogy of organizational populations and its consequences for organizational life chances when a member of an existing firm leaves to found a new firm. Hypotheses and subsequent analysis suggest that the transfer of resources and routines between a parent organization and its progeny decreases life chances for the parent firm and increases life chances for the progeny. The results are contingent on the founder's previous position in the parent firm and time since the parenting event. In addition, I find that progeny have lower life chances when the parent is a failing firm, when there are multiple parents, and when the founder is a former senior partner of a large law firm.