90Axx Mathematical economics,

• 90A05 Decision theory, See also {62Cxx, 90B50, 90D35}
• 90A06 Individual preferences
• 90A07 Group preferences
• 90A08 Social choice
• 90A09 Finance, portfolios, investment
• 90A10 Utility theory
• 90A11 Production theory, theory of the firm
• 90A12 Price theory and market structure
• 90A14 Equilibrium: general theory
• 90A15 General economic models, trade models
• 90A16 Dynamic economic models, growth models
• 90A17 Multisectoral models
• 90A19 Statistical models; economic indexes and measures
• 90A20 Economic time series analysis, See also {62M10}
• 90A25 Spatial models
• 90A27 Public goods
• 90A28 Voting theory
• 90A30 Environmental economics (natural resource models, harvesting, pollution, etc.)
• 90A35 Informational economics
• 90A36 Incentives theory
• 90A40 Consumer behavior, demand theory
• 90A43 Expected utility; risk-averse utility
• 90A46 Risk theory
• 90A50 Labor market
• 90A53 Special types of economies
• 90A56 Special types of equilibria
• 90A58 Models of real-world systems; general macro-economic models, etc.
• 90A60 Market models (auctions, bargaining, bidding, selling, etc.)
• 90A70 Macro-economic policy-making, taxation
• 90A80 Resource allocation
• 90A99 None of the above but in this section