Cyert and March's A Behavioral Theory of the Firm is a fundamental and clas
sic book; it was an early integration of organization theory and economics
of duopoly. Further, it introduced computational, or simulation, modeling a
s a means to investigate theoretical questions about the behavior of organi
zations. This article validates aspects of those early studies. More import
antly, the authors extend our understanding of the roles that routines play
in an organizational view of the firm and how routines can account for the
economic behavior and performance in a duopoly.