Based on an original survey of senior human resources (HR) executives, this paper provides empirical data for a comparison of HR management structures and practices in Japan and the United States. In both countries, the headquarters HR function has shrunk and employment decisions have become more decentralized in recent years. However, because the pace of change has been more rapid in the United States, the gap with Japan has widened. Significant differences persist in other areas, such as the HR executive's role in strategic decisions, perceived power of the HR function, executive values, and the consequences of these values for organizational outcomes and corporate governance.