What Are the Different Types of Macroeconomic Models?

A macroeconomic model is an economic mathematical model that describes the overall state and changes of objective economic processes in the entire national economic system. Its variables are the total or average of the economic system, such as total social output, national income, total investment, total consumption expenditure, currency issuance, price level, population development, employment level, import and export trade and their mutual Relationships and more. Among the series of macroeconomic models that people have researched and developed, econometric models, input-output models, optimization models, system dynamics models, and simulation models are more widely used. ^[1]