Through a quantitative primary data collection, Friedrich Völker demonstrates that family businesses adjust their CSR activities based on factors related to company size in order to derive the greatest possible strategic benefit. CSR measures here exhibit typical characteristics of investments. Various drivers determine which stakeholders CSR investments are directed towards. A critical role is played by company resources that are controlled by stakeholders and are crucial for competition, such as human, social, and reputational capital, which can be built up through specific CSR activities. The more valuable a resource appears in the context of the respective business environment, the higher the capital value of a CSR investment in that resource.