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In most common-law jurisdictions, the doctrine of judicial precedent, or stare decisis, obliges lower courts to follow the legal reasoning established by higher courts in previous cases with materially similar facts. This principle promotes consistency, predictability, and fairness, since parties can reasonably anticipate how a court will rule based on prior decisions rather than facing arbitrary outcomes. However, strict adherence to precedent can also entrench outdated or unjust rulings, particularly when social norms or technologies evolve faster than the judiciary revisits its own case law. To balance stability against adaptability, most supreme or constitutional courts retain the power to overrule their own prior decisions, though they exercise this power sparingly, typically requiring a compelling justification such as a demonstrated error of law, a shift in societal values, or a change in surrounding statutory framework. Lower courts, by contrast, are almost never permitted to depart from binding precedent set above them, even if they disagree with its reasoning; their remedy is to distinguish the facts of the current case or to invite an appeal. Legal scholars have long debated whether this hierarchical rigidity serves justice or merely preserves institutional authority. Comparative studies of judicial systems suggest that civil-law countries, which rely more heavily on codified statutes than on case-by-case precedent, exhibit less doctrinal inertia but sometimes suffer from greater unpredictability in how judges interpret ambiguous statutory language. Reform proposals in several common-law nations have called for periodic legislative review of judge-made law, intended to correct precedents that no longer reflect public consensus without waiting for a suitable case to reach the highest court. Critics counter that such review could politicize the judiciary and undermine its independence from legislative pressure, a tension that remains unresolved in ongoing debates about how legal systems should govern the relationship between continuity and reform.