International marketing research has demonstrated that research and development (R&D) and corporate social responsibility (CSR) are firm capabilities that can lead to competitive advantages in the international marketplace. A synergy vs. tradeoff dilemma on the R&D/CSR relationship has emerged as an important topic in the literature. The synergy approach suggests a positive link, while the tradeoff approach suggests a negative link between R&D and CSR. The authors employ the resource-, institution-, and industry-based views to clarify this dilemma by examining two moderators at the country and industry levels. The authors envision that home country national philanthropic environment (NPE) influences whether managers should take the synergy or tradeoff approach because NPE reflects the institutional pressures for firms to be more philanthropic. Further, since research finds that CSR differs between manufacturing and service firms, this industry categorization is hypothesized to moderate the effects of NPE on the R&D/CSR relationship. Estimating a hierarchical linear model with a sample of 888 firms across 15 countries, the results show that in high NPE level countries, there is an R&D/CSR synergy, and in low NPE level countries, there is a tradeoff. Furthermore, these relationships are relevant only within service rather than manufacturing industries.