The modern firm is a very viable economic institution, drawing strengt
h from a competitive market economy, with embedded 'super-markets' for
corporate control and 'sub-markets' for internal organization. The te
chnology-based firm in addition draws strength from its co-evolution w
ith modem science and technology (and vice versa), and thereby becomes
increasingly important. However, received theories of the firm, of wh
ich there are many, have not particularly taken account of technology
and technology-based firms, nor their management. This paper takes an
empirical point of departure from recent findings regarding the positi
ve relationship between technology diversification on the one hand and
corporate growth and business diversification on the other. These fin
dings are not readily explainable by received theories of the firm, wh
ich the paper reviews, and the findings are thus taken as an explanand
um for a proposed approach to formulate a theory of the technology-bas
ed firm. The approach is compatible with various other theoretical app
roaches such as the resource-based, the transaction-cost and the evolu
tionary approach, but specifically takes the idiosyncrasies of technol
ogy (i.e., technical competence) as well as management into account. T
hrough notably strong economies of scale, scope, speed and space assoc
iated with the combination of different technologies and resources, th
e technology-based firm is subjected to specific dynamics in its growt
h and diversification and shifts of businesses and resources. In parti
cular, a technology-based firm tends to engage in technology diversifi
cation, thereby becoming multitechnological. As such the technology-ba
sed firm has incentives to economize on increasingly expensive new tec
hnologies by pursuing strategies of internationalization on both input
and output markets, technology-related business diversification, exte
rnal technology marketing and sourcing, R&D rationalization and techno
logy-related partnering. (C) 1998 Elsevier Science B.V. All rights res
erved.