Conflicting sister-state precedents paradoxically fuel common-law change rather than stability

Evidence

Considerably more important is the influence of state courts in other states. In dealing with the common law, there is no legal text—no statute, constitutional provision, or administrative regulation—to interpret. So precedent, including the rulings of courts in sister states, becomes more important in guiding judicial decisions. Reliance on precedent contributes to stability in the law when the rulings in various states coincide. But when they diverge, state courts’ reliance on precedent can, paradoxically, be a force for legal change. Success by a litigant in one state can encourage litigants in other states to raise the same legal issue. When they do, they can point to favorable precedents in other states in arguing for legal change. If a state court consults only its own prior cases, respect for precedent, or stare decisis, will promote legal continuity. But if a court considers precedents from beyond the state’s borders, it may find conflicting interpretations of the common law. When it does, this conflict diminishes the authority of the court’s prior rulings, because those precedents then represent only one possible interpretation of the common law. — G. Alan Tarr, Judicial Process and Judicial…, 3534

Categorization

• XREF: Pays off the risk-of-reversal logic on horizontal stare decisis from ch121-122 about precedent binding only when judges would rather not follow it; also links to the diffusion of tort-law changes across states in ch160-162. — connects to: Judges create legal rules by weighing case similarities, not by applying fixed rules — G. Alan Tarr, Judicial Process and Judicial…, 1263; Implicit negotiation between courts and legislatures shapes common law even absent statute — G. Alan Tarr, Judicial Process and Judicial…, 3539; The common law adapts to social and economic change — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 1311 (+4 more)

Broader Connections

• Common law rules arise from comparing cases, not from tracing prior logic #expands (0.80) — Burton, Steven J, An Introduction to Law and Legal…, 222
• Structural constitutional rules resist change despite eroding functional justification #qualifies (0.78)