Final answer:
Stare decisis guides the Supreme Court to follow precedent in decision-making, ensuring continuity and stability in the law.
Step-by-step explanation:
The principle of stare decisis compels the Supreme Court to follow precedent when deciding cases, thereby fostering consistency and stability in the law. This principle operates under the axiom "let the decision stand," indicating that current decisions should align with the rulings from past cases, unless there is a significant justification to deviate. Hence, the effect of stare decisis on the Supreme Court's decision-making is to maintain legal continuity over time and to base decisions on established legal frameworks and past case law rather than personal beliefs, political considerations, or public opinion.