It was not optimal general supplies equal to general demands in real economy.

There are two classical expositions about the economic utility of bonds: David Ricardo s "theorem of equal value" and Keynes view of bonds increasing general demands.

This article holds that the contraction of general demands in our country s economy has deep structural background.

The quantitative analysis of the slope of aggregate demand curve;

The influence of Monetary Transmission Mechanism on price and output are decided by the common effect of aggregate demands and aggregate supply,According to currercy quantity theory,the PY is decomposed into P and Y.

In the process of this change, the aggregate demand theory has been developed greatly, so that the aggregate-demand relation, consistent with the utility maximization and rational expectations, can be derived from a dynamic optimizing general equilibrium model and serve as a building block of the new synthesis.

the general requirement for realization of balance of total supply and total demand as indicated by the formula of reproduction; 2.

Vent-for-surplus theory holds that stimulating the general demand by foreign trade enables the national economy to gain momentum.