Key indicators of a stable democracy include effective governance, respect for the rule of law, protection of human rights, and active citizen participation. Stable democracies also maintain a system of checks and balances, ensuring that no single entity accumulates too much power. Additionally, freedom of the press and a vibrant civil society are crucial, as they foster open discourse and hold leaders accountable. Regular and fair elections help legitimize the political process and encourage public trust in governmental institutions, contributing to overall stability.