Mathematical Sciences Classification System
91Bxx - Mathematical economics 
{For econometrics, see  62P20}
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                            91B02Fundamental topics (basic mathematics, methodology; applicable to economics in general)
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                            91B06
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                            91B08Individual preferences
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                            91B10Group preferences
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                            91B12Voting theory
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                            91B14Social choice
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                            91B15Welfare economics
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                            91B16Utility theory
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                            91B18Public goods
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                            91B24Price theory and market structure
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                            91B25Asset pricing models
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                            91B26Market models (auctions, bargaining, bidding, selling, etc.)
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                            91B28Finance, portfolios, investment
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                            91B30Risk theory, insurance
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                            91B32Resource and cost allocation
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                            91B38Production theory, theory of the firm
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                            91B40Labor market, contracts
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                            91B42Consumer behavior, demand theory
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                            91B44Informational economics
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                            91B50General equilibrium theory
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                            91B51Dynamic stochastic general equilibrium theory
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                            91B52Special types of equilibria
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                            91B54Special types of economies
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                            91B55Economic dynamics
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                            91B60Trade models
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                            91B62Growth models
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                            91B64Macro-economic models (monetary models, models of taxation)
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                            91B66Multisectoral models
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                            91B68Matching models
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                            91B69Heterogeneous agent models
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                            91B70Stochastic models
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                            91B72Spatial models
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                            91B74Models of real-world systems
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                            91B76Environmental economics (natural resource models, harvesting, pollution, etc.)
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                            91B80Applications of statistical and quantum mechanics to economics (econophysics)
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                            91B82Statistical methods; economic indices and measures
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                            91B84Economic time series analysis [See also 62M10]
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                            91B99None of the above, but in this section