关键词: 乘子, 社会账户体系, 平川乡

Abstract: The concept of the multiplier, Particularly multisectoral and multidimensional versions, still dominates much of the current literature in regional science and regional economics. Multipliers and their use in impact analysis had evolved from twenty years of experience in constructing regional economic models. Until recently, analyses have focused on the application of the social accounting matrix model at the regional level. In this paper, based on our building Pingchuan SAM, we use the SAM multipliers to help us understand more about the nature of linkages within a regional system as well as to create a more workable model for assessing the impact of external shocks. Firstly, social accounting matrix framework was set out in Pingchuan country context, and mathematical development of output multipliers was demonstrated in details. The impact of SAM multipliers was decomposed into three parts: (1) inter-group effect, contains the effects that injections into one group of accounts have on itself through interdependencies within the group;(2) intra-group effect, depicts own-direct effects, these are the effects resulting from the circular flow of income between groups of accounts;(3) extra-group effects, shows the effects that an injection into one group of accounts has upon some other group. Secondly, the social accounting matrix of Pingchuan country was presented in details, and some preminary analysis was made on the built social accounting matrix. The SAM multipliers were calculated based on former analysis. Finally, based on the construction and use of social accounting matrix, some proposals on how to improve Pingchuan country economy condition were put forward. With a viewing to improve Pingchuan country economy condition, prioritious development should be placed on stockbreedingand meatpacking industry.

Key words: social accounting matrix, multipliers, Pingchuan Country