Effective linkages between companies and thousands of farmers often require the involvement of formal farmer associations or cooperatives or, at least, informal farmer groups.

Plurality and dictatorship are less desirable as decision rules because they do not require the involvement of the broader group to determine a choice.

By the 1930s absolute speed and distance records were beyond the resources of individual companies, and required the involvement of national governments.

The sheer size of the structure required the involvement of many other companies in manufacture of individual lengths.

Procedural memory requires the involvement of the central executive in following verbal instruction while staying visually aware of the environment, ignoring distraction.