**1. Introduction**

Carroll's statement is know: [1] "The concept of corporate social responsibility (CSR) has a long and varied history. It is possible to trace evidence of the business community's concern for society for centuries. Formal writing on social responsibility, however, is largely a product of the 20th century, especially the past 50 years ". However, the current global challenges - including the environmental and social one - as well as recently the perspective completely changed by the COVID 19 emergency, lead to a rethinking of the CSR approach thanks to some nodes developed within the social impact assessment. Why is the CSR approach called into question? First of all because it is urgent to take structured approaches to responsibility and social citizenship of individual and collective business, for example on circular economy issues and social empowerment policies for the reduction of inequalities. The original perspective, born within the disciplines of the business economy - in particular on the issues of the corporate balance sheet and the social balance sheet - over time, comparing and contextualizing itself in a multiplicity of application sectors, has highlighted a strong need to rethink the concepts founding. However, this revision process maintains a fundamental principle, namely that of creating value or, even more correctly, of creating a new chain of values.

Given this assumption, which remains as the aim to which these approaches must aim, the chapter articulates this reasoning starting from a brief excursus on literature and research review, to then propose a hybrid approach between CSR approach and the methodological openings and experiments carried out in within the social impact approach and impact investing, in particular in the identification of suitable indicators and measurement scales, not only of an accounting and equity nature specific to the business economy [2].
