Understanding Courts’ Decisions on the Open-Ended Rule of Reproachable Behavior as Reasonable Ground for Terminating a Dutch Labor Agreement

This article examines how legal certainty and consistency can be strengthened in the application of open-ended legal norms. It investigates whether a systematic analysis of judicial decisions concerning an open standard in Dutch dismissal law can improve the prediction of future rulings. The study analyzes the reasoning in 398 court decisions addressing whether employee misconduct qualifies as reproachable behavior justifying termination of the employment contract. Prior research identified a set of indicators reflecting core legal principles that underpin judicial assessments of alleged misconduct. Building on this foundation, the present study identifies a limited number of indicator combinations associated with either a high or a low probability that courts will find sufficient grounds for dismissal. The findings furthermore show that when courts consider two or more indicators favoring the employee, the likelihood of termination nonetheless increases. Moreover, particular combinations of indicators correlate with outcomes that are either employee- or employer-oriented. The article concludes that structured case-law analysis can help mitigate the inherent indeterminacy of open-ended legal rules while preserving their capacity for context-sensitive decision-making.