citation-sourcinglisted

# Citation Sourcing Every statistic needs a named source. Every claim needs evidence or an explicit opinion label. Content backed by named research gets cited; content backed by "studies show" does not. ## Source Tiers Use the highest-tier source available for each claim. | Tier | Authority | Examples | Use For | | ---------- | ------------ | ------------------------------------------------------------------------------------------ | ------------------------------------------------------ | | **Tier 1** | Highest | Academic journals, government data (BLS, Census), Gartner, Forrester, McKinsey | Key statistics, research findings, industry benchmarks | | **Tier 2** | High | HBR, WSJ, major news outlets, respected industry publications | Trends, expert opinions, case studies | | **Tier 3** | Acceptable | Established industry blogs with named authors, company research with methodology disclosed | Definitions, background, general context | | **Avoid** | Insufficient | Anonymous blogs, content farms, undisclosed vendor marketing | Should never be primary sources | Wikipedia is useful for discovering primary sources via its references — cite those primary sources directly rather than citing Wikipedia itse