Abstract:Since the beginning of the 21st century, breakthroughs and cross-fertilization in disciplines such as information, biology, new energy, and new materials have laid the groundwork for a new wave of technological revolution and industrial transformation. The permeability and diffusion of technology into various sectors of the economy and society have continued to increase, with major disruptive technological innovations constantly emerging. As a new and decisive factor in industrial development, technology fusion has become a key pathway for enterprises to break through technological constraints, respond to market changes, and achieve innovative development. Particularly in innovative fields like new energy vehicles, where product components involve various knowledge and technologies, whole-vehicle manufacturers as system integrators need to master a large amount of non-core knowledge and technology. They must then recombine it with their core technologies to maintain a competitive edge in the fierce market and achieve sustainable development. However, due to the inherent ambiguity and complexity of fusion phenomena, measuring and analyzing technology fusion has always been a challenge in academic research. There has been little research specifically focusing on quantitatively examining the impact of different technology fusion modes on enterprise innovation. This paper is based on panel data of 343 new energy vehicle enterprises in China from 2005 to 2017, including data on new product development, patents, and enterprise characteristics. From the perspective of the relationship between technological elements, the paper constructs an enterprise technology knowledge co-occurrence matrix using different categories of IPC classification codes. It then employs a negative binomial fixed-effects regression model to empirically study the effects of complementary technology fusion and substitutive technology fusion on enterprise performance in exploitative innovation and exploratory innovation. The research findings indicate that when enterprises lean towards exploitative innovation, seeking to meet consumer demands by improving existing products, designs, or services, they should adopt substitutive technology fusion to enhance their innovation performance. Conversely, when enterprises strive to explore new technological development paths to meet the needs of emerging customers or markets, the positive effects of complementary technology fusion become more prominent. Although substitutive technology fusion may initially endow existing technologies with new functionalities and greater competitiveness, it may hinder the further improvement of exploratory innovation performance in the later stages. Therefore, enterprise managers should deepen their understanding of the relationships between technological elements to better conduct organizational learning and innovation activities. They can develop different technological innovation trajectories through various technology fusion approaches.