Glossary · Digital Economics
Zero Marginal Cost
Definition
Zero marginal cost describes the economics of digital goods, where serving one additional user imposes essentially no incremental production cost. This property inverts classical pricing theory: optimal pricing becomes a discovery problem over willingness-to-pay distributions, not a cost-plus calculation.
When marginal cost is zero, price equals marginal cost (the competitive outcome) produces zero revenue. Pricing must therefore extract value from the consumer surplus — via bundling, versioning, price discrimination, and two-part tariffs. The winner-take-most dynamics of digital markets partly trace to this: a firm that captures a demand segment can scale without variable cost drag.
Essays on this concept
- Digital Economics
The Economics of Zero Marginal Cost Bundling: When Adding Products Decreases Revenue
In digital markets, the marginal cost of adding one more product to a bundle is zero. Conventional wisdom says bundle everything. The data says the opposite — past a threshold, each addition dilutes the bundle's perceived value and total willingness to pay drops.
- Marketing Engineering
Causal Impact of SEO on Branded Search: A Synthetic Control Method for Organic Channel Measurement
SEO is the only major marketing channel where practitioners still argue about whether measurement is even possible. Synthetic control methods borrowed from policy economics prove it is — and the results will surprise you.
- Marketing Strategy
Jobs-to-Be-Done Segmentation Using NLP: Mining Customer Reviews to Discover Unmet Needs at Scale
Christensen said customers 'hire' products for jobs. Traditionally, discovering those jobs required expensive qualitative research. NLP applied to millions of customer reviews can surface the same jobs — plus ones that interviews miss because customers can't articulate them.
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