Organic egg sales in the US

Between 2010 and 2021, self-published books and organic egg sales both grew in the US, correlating at 0.9644 across nine data points. The unified theory is that the same person who refuses to eat a conventional egg also refuses to submit to a conventional publisher, and both decisions are made with equal conviction and roughly equal commercial viability. The self-published author and the organic egg share a market position: premium-priced, artisanal, and purchased primarily by people who care deeply about provenance. Both are available on Amazon, which is the only supply chain that matters.

Self-published books grew from roughly 150,000 to over 4 million titles annually, driven by Amazon KDP's elimination of publishing barriers. Organic egg sales grew as consumers shifted toward cage-free and organic options, with organic eggs reaching over $1.5 billion in retail sales. Both are growth-from-a-small-base stories across nine years, driven by consumer demand for alternatives to mainstream options in their respective categories.

Nine data points of two alternative-market categories growing from small bases will produce a strong correlation. The self-published book and the organic egg share a consumer philosophy—preference for the non-mainstream—but not a cause.