Theory predicts that in markets with increasing returns, the number of differentiated products and resulting consumer satisfaction grow in market size. We document this phenomenon across 246 US radio markets. By a mechanism that we term 'preference externalities', an increase in the size of the...

When a product's product provision entails fixed costs, it will be made available only if a sufficient number of people want it. Some products are produced and consumed locally, so that provision requires not only a large group favoring the product but a large number nearby. Just as one has an...

Economists have long counseled reliance on markets rather than on government to decide a wide range of questions, in part because allocation through voting can give rise to a "tyranny of the majority." Markets, by contrast, are believed to make products available to suit any individual,...

Theory: Markets and the tyranny of the majority; Are "lumpy" markets a problem?; Empirical evidence: Who benefits whom in practice; Who benefits whom in the neighborhood; Preference minorities as citizens and consumers -- Market solutions and their limits: Market enlargement and consumer...