Purpose: The purpose of this paper is to explore the relationship between corporate social responsibility (CSR) at the macro-level and well-established dimensions of national culture offered by Hofstede’s framework. Design/methodology/approach: The authors employ a composite index for quantifying CSR proliferation and present new findings on the role of cultural specificity – proxied by Hofstede’s dimensions – on CSR endorsement among national business sectors. Findings: Results indicate that cultural perspectives pertaining to “long-term vs short-term orientation” as well as “indulgence vs restraint” affect positively the composite CSR index, while “uncertainty avoidance” has a negative impact. In contrast, the effect of “power distance,” “individualism” and “masculinity” is found to be insignificant. Originality/value: The study offers new insights to institutional theorists as well as political economy researchers for a deeper investigation of informal institutions, such as culture, which shape national or regional specificities of CSR and retain a moderating effect on the voluntary/self-regulation activities of business entities.