The economics literature generally considers products as points in some characteristics space. Starting with Hotelling, this served as a convenient assumption, yet with more products being .exible or self-customizable to some degree it makes sense to think that products have positive measure. I...

We show that in many applied economic models, it is possible to reduce the dimensionality of the space of actions to what we call sufficient decisions. We find that for monopoly and oligopoly in multi-sided markets and multi-product markets, the market equilibrium can be transformed into an...

The economics literature generally considers products as points in some characteristics space. With more products being flexible or self-customizable to some degree, it makes sense to model products with positive measure. I develop a model of firms which can offer interval-long 'fat' products in...