Andrew Chen

Hypothesis: most referral programs fail because they optimise for invitation volume rather than invitation quality. High-volume, low-fit referrals increase k-factor short-term but damage retention and LTV. The better design is to optimise for referred-user activation and 90-day retention, not invitation volume. Note: this is a working hypothesis from pattern-matching across cases, not a rigorously validated framework.

The document explores how growth hackers can transition into and fulfill VP of Marketing roles, outlining the key responsibilities they take on and how their data-driven, experimental approach can significantly accelerate startup growth.

This 80-slide deck is designed to help founders understand how investors evaluate startups by highlighting the key metrics and warning signs that investors look for during the investment process.

The document is a 70-slide deck from a16z (Andreessen Horowitz) that outlines the firm's criteria for evaluating consumer startups, providing guidance on what characteristics make founders and products compelling investment opportunities.

The document provides a concise retrospective on viral loops, drawing on lessons learned (and subsequently forgotten) during the Web 2.0 era, highlighting how products and services spread organically through user-driven mechanisms.

The document examines frequently encountered skeptical memes associated with various product categories and provides concise, one-line rebuttals designed to help counter critics of those products.

The document shares lessons derived from analyzing thousands of users and applies those insights to the specific challenge of retaining users in modern AI applications.

The document is a brief self-description from a newsletter author who writes long-form essays on startups, user growth, and network effects, and has also authored a best-selling book called "The Cold Start Problem."

The document introduces the topic of viral growth as it relates to product features, highlighting its role as a central driver behind many of the world's most popular products reaching massive user bases.

The document is an article by Andrew Chen exploring viral growth as a product-driven mechanism — specifically the kind embedded in features such as invites, sharing, and collaboration. The article argues that the best approach to driving viral growth is to focus on retention and engagement rather than purely on acquisition.

The document is a personal announcement by the author about joining Andreessen Horowitz (a16z) as a General Partner, based in San Francisco, CA. The author focuses on consumer startups spanning marketplaces, entertainment/media, and social platforms, and expresses enthusiasm about their new role as a professional investor.

The document provides a brief profile of Andrew, a prolific writer and author associated with a "speedrun initiative." Over the past decade, he has written hundreds of essays on startups and user growth, and has authored a best-selling business book published by a major publisher.

The document discusses the limitations and pitfalls of viral loop strategies for product growth, arguing that they are largely ineffective in the modern landscape.