Measurement of organizational social impact is a pressing issue in corporate social
responsibility research. This paper proposes an alternative measurement model – Core
Organizational Stakeholder Impact (COSI) – based on economic, legal and ethical
responsibilities of organizations. The model allows understanding organizational social
footprint, i.e., how organizations impact each stakeholder. It has 40 indicators, easy to apply, dividing internal and external stakeholders in equal number (20), and
corresponding to equal maximum scores (35 points each). A first exploratory
application of COSI shows that it captures well the strengths and the weaknesses of
the organizational performance in terms of social impact. The model also sensitizes
managers to the importance of being sustainable and stakeholder oriented in order to accomplish organizational mission, and to contribute the welfare of society
