National economy
As National economy becomes the whole of all in a marketing area (usually a state or a state group) connected and mutually dependent participants (Households, and that is that Two-sector model.
The material national economy serves that as model for the construction of simplified representations in the form of usually mathematical . The economical models contain two depending upon an explanation goal or more participants. As a further participant for example the state is applicable.
One differentiates open of closed national economies, according to whether they stand with other national economies in connection.
