Introduction 1. Sociological Theory of Employment Relations 2. Employment Relations in Post-War Japan 3. Political Segmentation of the Labor Market: the Establishment and Expansion of New Employment Forms 4. The DWS: Deregulation of Working Time and Its Impact on the Effort Bargain 5. Re-bargaining Effort: the Introduction of Results-Orientation at COMPUJ 6. Conclusion: Changes and Future Directions of Japanese Employment Relations