organizational structures come about as reflections of rational rules, with institutional
rules functioning as myths that organizations incorporate in their structure and mode of
operating, thereby also gaining legitimacy and stability. These authors argue that in order
to achieve legitimacy, organizations tend to construct stories about their actions and
activities. These stories are used as forms of symbolic reassurance to appease influencial
people or the public in general. The focus of DiMaggio and Powell (1983) is on processes
of institutional homogenization, as well as similarity of practices and arrangements in
institutions. In essence, they developed the former theme further. Noting the remarkable
similarity of organizations in contemporary industrialized societies, they question why
organizations tend to become so similar to each other. Their central argument is that
organizations tend to incorporate practices, rules and procedures that have been
institutionalized and, in establishing how this process occurs, they highlight coercive,
mimetic, and normative processes of reproduction that lead to the isomorphic
organizational structures that generate increased legitimacy. Rather than because of
competition, or objectives connected to greater efficiency, organizations attempt to
obtain legitimacy in their environments in response to institutional pressures. This
homogeneity of practices leads to a constant and repetitive modus operandis in organized
life that may not be easily explained by a rational-actor approach.
According to DiMaggio and Powell (1983: 150): “Coercive isomorphism results from both
formal and informal pressures exerted on organizations by other organizations upon
which they are dependent and by cultural expectations in the society within which
organizations function”. As such, coercive factors may also involve political pressures and
the force of the state, and, in some cases, even provide regulatory oversight and control,
namely through defining measures and procedures that need to be implemented by the
actors within those regulated industries. However, they can also arise from cultural
expectations. In the case of international organizations, one can also think of
isomorphism resulting from more subtle and indirect processes.
A second source of institutional isomorphism is mimesis (DiMaggio and Powell, 1983:
151). This mechanism works in the sense that actors are pulled towards certain types of
organizational models, and often times of work and behaviour, as they find those
solutions to be attractive to the problems they face, or favourable in terms of
advancement and recognition. This imitation of institutional templates legitimated in the
organizations’ field often makes up for a lack of rationality of the decision and, last but
not least, becomes a saveguard in the case of failure, as one is able to demonstrate
having done “what should have been done” or acted “according to correct procedures”.
This mimetic isomorphism can be seen as a response to uncertainty and as a source of
legitimation (DiMaggio and Powell, 1983: 155; Kalev et al, 2006; Meyer and Jepperson,
2000; Meyer and Rowan, 1977; Powell and DiMaggio, 1991).
There is also isomorphism that results from normative factors that stem from the
influence of the professions and the role of education, many of them with great authority
and influence, as well as mimetic forces drawn on habitual and taken-for-granted
responses to circumstances of uncertainty. For instance, universities and other
professional training institutions diffuse standards across national boundaries and often
become “best practices” in any given profession. As such, they “are important centres
for the development of organizational norms among professional managers and their
staff” (DiMaggio and Powell, 1983: 152). Moreover, they function as developers of
common practices and ways of thinking, thereby favouring professionals in organizations