The competitive equilibrium correspondence, which associates equilibrium prices of commodities ans assets with allocations of endowments, identifies the preferences and beliefs of individuals, this is the case even if the asset market is incomplete.

The competitive equilibrium correspondence, which associates equilibrium prices of commodities and assets with allocations of endowments, identifies the preferences and beliefs of individals also under uncertainty; this is the case even if the asset market is incomplete.

The fundamentals of an exchange economy, the preferences of individuals, can be identified from the competitive equilibrium correspondence, which associates equilibrium prices of commodities to allocations of endowments; the argument extends to production economies.