Demand Analysis on Defense General-Purpose Materials Importation Under the Economic Opening Policy

Based on the observation and the analysis of the total demand amount and the procurement benefit of the defense general-purpose material (DGM) importation in the process of entry into WTO, this article positively researches the logic of the DGM importation amount come into being, and describes this procession as three phases. After analysis on the reasonable-demand model and actual-demand Model, the author points out that, from the angle of demand part, the DGM importation demand´s undulation under the under the economic opening policy will be taken DGM reasonable importation demand as the upper limit and the effective demand without policy benefit as the lower limit and forward draws close to the former in scale, but the main undulation recently is decrease which indicate the change of China´s DGM importation demand type from preferential-policy-pull to construct-requirement-push, and this change is the intrinsic factor and physical cause of the undulation.