Product space

A network of products where proximity reflects how often countries export them together. Used to predict which new products a country could plausibly start exporting.

The Hidalgo-Hausmann product space, built from co-export patterns across countries, places "neighboring" products near each other (e.g. cotton fabric near cotton apparel). A country can more easily diversify into nearby products in the space than into distant ones. Concentrated commodity exporters tend to sit on the periphery of the product space, with few easy diversification options.