A Theory of Defensive Skill-Biased Innovation and Globalization
构建动态创新模型，分析企业如何因应全球化带来的技术赶超或模仿威胁，主动将创新偏向技能密集型技术，进而加剧南北双方的工资不平等，并提供了相关实证线索。
This paper considers a dynamic model of innovations in which firms can endogenously bias the direction of technological change. Both in a North–North and North–South context, we show that, when globalization triggers an increased threat of technological leapfrogging or imitation, firms tend to respond to that threat by biasing the direction of their innovations towards skilled-labor-intensive technologies. We show that this process of defensive skill-biased innovations generates an increase in wage inequalities in both regions. We then discuss suggestive empirical evidence of the existence of defensive skill-biased technical change.