How many economic models are there? What are they?

Economic model refers to the theoretical structure used to describe the relationship between related economic variables of the economic things studied. The economic model is:

1, mathematical model. Mathematical model An economic model used in mathematical economics. Nine basic economic mathematical models include marginal analysis model, elastic analysis model, maximum profit model, optimal batch model, linear regression equation, linear programming mathematical model, input-output mathematical model, risk-based decision-making mathematical model and process quality control mathematical model.

2. Measurement model. Econometric model An economic model used in econometrics. Econometric model combines economics, mathematics and statistics to determine the actual value in economic relations. Main contents: establishing models, estimating parameters, testing models, forecasting the future and planning policies.