In this paper, we assess complexity in organizations in terms of the dimens
ions of 'depth' and 'breadth'. We examine how this operates in firms, indic
ating how different fields of research have tended to highlight only certai
n aspects of complexity, for instance, technology or products. In addition
to assessing the impact of growing complexity in each functional area along
either dimension, we further investigate the conditions under which comple
xity between the dimensions or functional areas may be coactive or conflict
ing. Detailed examination of historical evidence shows that greater complex
ity in one dimension or function does not necessarily lead to greater compl
exity in another. However, any simplification within a function or between
functions may require changes in organizational structure and managerial co
ntrol. (C) 2000 Elsevier Science B.V. All rights reserved.