Just finished reading an article on network effects. A few practical takeaways that changed how I look at certain stocks:
• Network effect = value rises as users increase (demand-side scale), not just cost efficiency.
• Critical mass is everything. Before it, users churn easily; after it, defensibility strengthens.
• User growth alone is meaningless if it doesn’t convert into monetization and pricing power.
• Engagement per user matters more than total users (cohort retention, frequency, wallet share).
• Liquidity-based networks (e.g., exchanges, payments) tend to be more durable than consumer apps.
• Multi-tenanting risk weakens moats — if users can easily use competitors, defensibility falls.
• Complementary networks (marketplace + payments + ads) compound moat strength.
• The real signal: improving unit economics and declining customer acquisition cost over time.
In short: growth is optional, defensibility is not.
Would be keen to hear how others here assess network strength in their holdings.
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