Using OECD data of 26 countries, this paper analyzes the role of structural factors such as globalization, tertiarization, informatization and financialization, which are frequently thought to have influence on income inequality between labor and capital, in explaining the movement of labor share over 1995∼2007. The results show that globalization and financialization have a negative impact on labor income share, while tertiarization and informatization have a positive impact. We can deduce that tertiarization has been labor intensive and IT is labor-augmenting.