Impact of R&D Investment and Enterprise Scale on Input-Output Efficiency via Human Capital Innovation

This research explores the relationship between R&D investment, human capital innovation (HIC), and input-output efficiency. Findings indicate that increased R&D investment positively influences input-output efficiency through HIC. However, this effect is contingent upon the enterprise achieving a certain scale. Only when an enterprise reaches a specific size can HIC effectively mediate the relationship between R&D investment and enhanced input-output efficiency.