sentences:  The introduction by social agents of new rules and their expression in transformed patterns of action or in innovative physical artifacts – such as technologies and socio-technical infrastructures – is a major part of institutional change and evolution.In other words, institutionalized changes may be brought about by the "selective forces" of social as well as physical environments or by the direct action of social agents.This model of change is applicable to economic, political, administrative, socio-technical, and scientific institutional arrangements.