Bank–firm Relationships and Innovation Outcomes: Evidence from Categories and Quality

This study examines the impact of bank–firm relationships on innovation outcomes by utilizing patent data from Japanese firms. Our results reveal that compared with other firms, (1) firms with closer relationships with banks are less likely to engage in high-risk innovation and that (2) firms that receive board member appointments or equity investment from banks tend to pursue exploitative innovation rather than exploratory innovation. Conversely, firms with greater dependence on loans from specific banks tend to exhibit greater R&D investment but produce fewer patents than do other firms. These findings suggest that while banks with close relationships with firms may encourage higher levels of R&D investment, they simultaneously impede the pursuit of high-quality and exploratory innovation.