Korea in the Global Innovation Network: Navigating Technological Interdependence

As U.S.–China competition intensifies, rivalry is also sharpening within the global knowledge system. This raises a central question: how does deepening U.S.–China tension reshape the global innovation network (GIN)—the cross-border web through which knowledge is created, shared, and recombined? Governments worldwide have long emphasized the strategic importance of science, technology, and knowledge. Yet science and technology policy has often been approached primarily as a domestic agenda. In today’s global economic environment—marked by heightened strategic competition—this perspective is increasingly incomplete. The key issues are not only how much a country invests in innovation, but also how its position within global knowledge networks is changing, how geopolitical frictions affect knowledge flows, and what strategic direction policy should take in response. This study therefore focuses on the cross-country and cross-industry structure of technology and innovation. Traditional policy approaches have tended to prioritize expanding total R&D spending. However, innovation cannot be generated by the R&D efforts of a single country, industry, or firm alone. A defining feature of innovation—often underappreciated in policy debate—is its networked and cumulative nature: advances in one sector shape the trajectory of innovation in others, often with long-run effects. Semiconductor progress, for example, does not remain within the semiconductor industry; it underpins innovation in telecommunications, computing, and automobiles. Conversely, knowledge developed in these downstream industries feeds back into semiconductor advances. These interactions occur not only within national borders but also across them, as knowledge diffuses through multiple channels linking countries and sectors. Accordingly, effective R&D allocation and innovation strategy require explicit attention to international and intersectoral “network effects.” Against this backdrop, this World Economic Brief traces how Korea and other major economies—including the United States, China, Japan, and Europe—have evolved within the global innovation network over 2000–2020. Using this network perspective, we examine (i) changing patterns of interdependence and (ii) shifts in countries’ relative positions across key technologies.