Does supplier involvement enhance financial performance? The encapsulation effects of product modularity and smartness

Purpose: This study aims to explore the conditional relationships between supplier involvement and financial performance. From a problem-solving perspective, this study takes the focal firm as a problem-solving system. It is postulated that supplier involvement enhances financial performance by helping solve complex problems of new product development. Furthermore, product modularity and smartness are considered contingent factors to clarify the boundary conditions. Design/methodology/approach: The ordinary least squares regression was conducted to test the hypotheses based on survey data from 136 high-tech firms in China. Findings: Supplier involvement is positively related to financial performance. Product modularity weakens the impact of supplier involvement on financial performance. Furthermore, product smartness strengthens the negative influence of product modularity on the relationship between supplier involvement and financial performance. Originality/value: This study combines supplier involvement with product attributes. It takes a problem-solving perspective to rethink suppliers’ roles in new product development as problem-solvers rather than resource holders. Furthermore, this study advances the encapsulation effects of product modularity and smartness to influence the supplier involvement–financial performance link.