Michael T. Hannan

"independently proposed models of populations dynamics that incorporate effects of competition between populations."

"Inertial pressures prevent most organizations from radically changing strategies and structures."

"Hannan and Freeman examine the ecology of organizations by exploring the competition for resources and by trying to account for rates of entry and exit and for the diversity of organizational forms. T…"

"Natural selection, as it is actually used in evolutionary population biology, serves mainly as an optimization process. In fact, the reasoning that underlies much evolutionary biology often strikes so…"

"For wide classes of organizations there are very strong inertial pressures on structure arising from both internal arrangements and from the environment . To claim otherwise is to ignore the most obvi…"

"The concept of "niche," initially borrowed by biologists from early social science, plays a central role in ecological theory... The niche... consists of all those combinations of resource levels at w…"

"We argue that in order to deal with the various inertial pressures the adaptation perspective must be supplemented with a selection orientation. We consider first two broad issues that are preliminary…"

"The existing literature usually stresses the capacity of organizations to learn about and adapt to uncertain, changing environments. We think this emphasis is misplaced. The most important issues abou…"